Guide:Walkthrough

When progressing through Terraria, many players can be confused about where they should go and what they should do next. Terraria is an open-ended game: you are not forced to go anywhere or do anything. You are free to set your own goals and follow through with them, whether you are a builder, fighter, explorer, collector, or whatever else. This walkthrough merely aims to provide a logical order of progression through Terraria’s many different biomes, generally in order of increasing difficulty. It is recommended, but there is certainly no requirement to visit each biome, or even in this order if you don't want to.

If you are unsure of what map size to choose as a new player, choose small. Even in a small world, a player can face long travel times, and it would still take hundreds of hours to explore every cave in a small world at a normal pace.

= Starting Out = On the creation of a new world, a helpful NPC (Non Player Character) will spawn, and he is called the. If you are new to Terraria, then chat with him and he will give you advice on different elements of your world. It is a good idea to let him stick around because you'll need the Guide to summon the Wall of Flesh.

Beginner
Your goal during the day should be to find some better starting equipment from your surroundings and build a small house to pass the night.

The first thing you should do is cut down several trees (using your, aim for the lowest block), as wood is needed for many things, then build a. From there, craft a, and perhaps a , as your starting weapons are next to useless.

Next, you should explore your surroundings. There are usually some and  on or near the surface near your starting point, which will often contain useful weapons and other items. If you are lucky (a 9% chance per chest), you’ll find a Spear, which is one of the best starting weapons, especially against Zombies, the biggest threat at this point. If you can find enough near the surface (you'll need 20), you can also make a, which is finicky, but a solid starting weapon. There will also almost always be at least one cave entrance close by leading Underground. Use and  to reach high ledges, bridge chasms, and safely descend. Always carry blocks around with you so you can descend safely!

Once you have explored your surroundings and cracked open all the chests and pots in sight, you should head to the Underground before night falls to continue your search for useful items and resources.

It is recommended to stay Underground (or inside your House if you built it) during night time until you are strong enough to deal with Zombie packs, as there is little to be gained and so much to lose for a new character during night. If you do find yourself outside at night, any weapon that can hit multiple times is very useful. If you're not used to playing Sandbox building/mining games, it is easy to forget your greatest ability: the power to move blocks.

If you are busy fighting enemies at night, it may be wise to look for Fallen Stars while you're outside. 3 / 5 of them can be used to craft a, which will benefit you later when you obtain Magic Weapons.

= Going Underground =

While exploring the Underground (and, by extension, the Caverns), you might find : you can mine and use them to increase your maximum life by 20 (up to a maximum of 400). You can also stockpile Life Crystals and use them to craft, which increases life regeneration as long as you stay near to it. It's critical that you increase your max life, as it significantly boosts your survivability. That said, your first few crystals will also unlock various events: The first unleashes Blood Moons, the third allows Slime Rains, and the fifth allows the Eye of Cthulhu to spawn. It may be wise not to use the first crystal until you have Iron/Lead or better armor, and to hold off on the fifth until you have Gold/Platinum armor.

The Caverns are a massive biome with many useful items and treasures, and as such, players may find themselves spending a lot of time here. Although its monsters can be dangerous for a new player, the greatest threat in this layer may be the danger of falling into its deep chasms, frequently with the aid of the bats. Should you find yourself falling to death, don’t forget there are a number of items that can break your fall: 's (or equivalents) extra jump, Grappling any surface (with a ), including the ground you’re about to hit, or even an. Pools of water (1+ block deep) and Cobwebs will also save you if you’re lucky enough to fall into them.

This ever-present danger is closely followed by the devious and near-invisible traps sprinkled throughout the dark caves. A bold, fearless new player skipping heedlessly through the caves for the first time will quickly meet with a landing on their head, or even, a landmine powerful enough to destroy the surrounding terrain. These dangers can be fatal to Hardcore characters. Needless to say, tread with extreme caution, and take advantage of the. Using generous amounts of light sources is one of the best ways to mitigate both of these dangers. The, , and s can prove useful additions to the usual sources.

Although there are many helpful items to be collected in this layer, probably at the top of the list will be a and a. Both of them will make getting around much easier and faster. Fortunately, with the Gem hooks, it is trivial to craft one, and Magic Mirrors are also very common. Besides these two, a player may want to craft a, as they tend to outclass most other weapons at this stage of the game, limited by the number of stars you’ve managed to collect so far.

Note that should you descend too far, you will actually find yourself in the Underworld. This will be marked by a change in music and background, and its enemies will start spawning, which you probably won’t want to face at this stage.

A quick note on weapons and armor: at this stage, you have a lot of choices of Ore-based weapons and armor that you can craft. It is entirely feasible to be constantly upgrading your weapons if you desire, as they don’t cost much. The, for example, only costs 8 Iron Bars – 24 iron ore – which is about one to three ore veins. Armor is a different question. Because of set bonuses, it is wise to try and complete an armor set rather than mixing and matching different pieces. Because of how Defense works, there isn’t a huge benefit from upgrading from one armor set to the next. The Copper armor set, for example, reduces damage taken by 3, Iron armor reduces damage by 5, so the difference in damage reduction is only 2, which is barely noticeable. Yet to complete the Iron armor set requires 225 ore, which represents a significant amount of mining time.

It is therefore recommended to mine Silver or Tungsten Ores for the Armor because they are good enough to take on the first bosses, it's significantly faster to complete than Gold or Platinum, and allows you to save the latter for Weapons and Tools.

= Building a Base =

Once you’ve filled your inventory with blocks and loot, you may want to consider starting to build a base, as now you have some building materials and money to buy things. A base can take anywhere from a single in-game day to more than an in-game week to complete, depending on the player's tastes. It is not necessary, however, to build the entire base right away. Waiting to build the majority of the base can be advantageous, as it will allow the player to use the large stores of blocks they will end up gathering as a by-product of mining. Regardless of when or what the player builds, it is recommended to build houses for the Guide, Merchant and Nurse, craft a, and an area for storage and crafting before progressing. It is also wise to create a layout that can be easily added onto later as more NPCs are available and more storage is needed.

You should have at least the following in your base before moving on:
 * Of course, houses for the Guide, Merchant and Nurse, as well as a valid empty house or two for other NPCs.
 * Several organized chests for item storage. You don't want to have a cluttered inventory every time you leave your base.
 * A campfire and sunflowers, both of which provide helpful buffs to those nearby. (Sunflowers also block the spread of Corruption and Crimson until hardmode, if you happen to have such biomes near your base.)
 * A crafting room, preferably with a chest or two in it to store crafting materials. Eventually, you're going to want a unified place for all your crafting needs. By now, you'll have a, a on that Work Bench, a  next to it, a , an /, and probably a  and a . A Chair and a Table adjacent to each other will serve as a crafting station for Watches. You should also leave some space for later-game crafting stations and more chests, but with just this setup, you'll be able to craft anything up to this point, from swords to robes to potions and building blocks.

= Beyond the Forest =

Once the player obtains strong enough weapons many mid-tier biomes open up. These biomes contain crafting materials as well as other treasures.

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 * type=Biome|name=Underground Desert
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{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|200}} (200)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |Silver Broadsword or better, Spear, Rally }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Iron or better }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Antlion}} |{{item|Antlion Larva}} |{{item|Antlion Swarmer}} |{{item|Giant Antlion Swarmer}} |{{item|Antlion Charger}} |{{item|Giant Antlion Charger |{{item|Tomb Crawler}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Antlion Mandible}} |{{item|Mandible Blade}} }} }} {{flexend}} |{{item|Hardened Sand Block}} |{{item|Sandstone Block}} |{{item|Desert Fossil}} |{{item|Sand Block}} }} The Underground Desert is about as difficult as the Ice biome and is a good source of treasure otherwise found in the Caverns. However, until you obtain a pickaxe stronger than gold or platinum, you cannot mine the Desert Fossils (you can't use bombs on them), but once you can mine them, put them through an Extractinator to get {{item|Sturdy Fossil|s}}, which are used to craft consumable throwing weapons and a set of Armor that will greatly help you through Pre-Hardmode. }}
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{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Biome|name=Jungle
 * color=#8CC944
 * icon = BiomeBannerJungle.png{{!}}275px
 * intro=

{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|160}} (160)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |Ebonwood or Shadewood Sword, Bow, Gem Staff }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Cactus, or Ebonwood or Shadewood }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Piranha}} |{{item|Snatcher}} |{{item|Jungle Bat}} |{{item|Jungle Slime}} |{{item|Zombie}} |{{item|Demon Eye}} |{{item|Doctor Bones}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Hook (crafting material)|Hook}} |{{item|Robot Hat}} |{{item|Compass}} |{{item|Depth Meter}} |{{item|Gel}} |{{item|Slime Staff}} |{{item|Shackle}} |{{item|Zombie Arm}} |{{item|Wooden Arrow}} |{{item|Archaeologist's Hat}} }} }} {{flexend}} |{{item|Moonglow}} |{{item|Jungle Rose}} |{{item|Jungle Grass Seeds}} |{{item|Sky Blue Flower}} |{{item|Rich Mahogany}} |{{item|Double Cod}} |{{item|Neon Tetra}} |{{item|Jungle Crate}} |{{item|Do Not Step on the Grass}} }} The jungle is one of the more difficult surface biomes. The Underground Jungle should not be attempted early on. }}
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{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Biome|name=Corruption
 * color=#635F89
 * icon = BiomeBannerCorruption.png{{!}}275px
 * intro=

{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|160}} (160)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |Ebonwood Sword, Bow, Rally, Gem Staff }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Ebonwood or Cactus }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Eater of Souls}} |{{item|Devourer}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Rotten Chunk}} |{{item|Ancient Shadow Helmet}} |{{item|Ancient Shadow Scalemail}} |{{item|Ancient Shadow Greaves}} |{{item|Worm Tooth}} |{{item|Suspicious Looking Apple}} }} }} {{flexend}} |{{item|Vile Mushroom}} |{{item|Deathweed}} |{{item|Ebonwood}} |{{item|Ebonstone Block}} |{{item|Ebonsand Block}} |{{item|Purple Ice Block}} |{{item|Ebonkoi}} |{{item|Purple Clubberfish}} |{{item|Corrupt Crate}} |{{item|Lightless Chasms}} }} |{{item|Musket}} and {{item|Musket Ball}} |{{item|Shadow Orb (item)|Shadow Orb}} |{{item|Vilethorn}} |{{item|Ball O' Hurt}} |{{item|Band of Starpower}} }} The Corruption can be a challenging biome for players. Demonite is found in small deposits in this biome, a Gold Pickaxe or equivalent is needed to mine it. Ebonstone can only be mined with a Nightmare Pickaxe, which can only be obtained after defeating Eater of Worlds, but you can use {{item|Purification Powder}}, {{item|Bomb}}s and/or {{item|Dynamite}} to destroy it before you’ve defeated him. {{dablink|For more info on dealing with the Corruption, see Guide:Surviving in the Corruption.}} }}
 * title_resources=Notable Resources
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 * title_chest=Shadow Orb Contents
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{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Biome|name=Crimson
 * color=#C16964
 * icon = BiomeBannerCrimson.png{{!}}275px
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{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|160}} (160)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |Shadewood Sword, Bow, Rally, Gem Staff }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Shadewood or Cactus }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Blood Crawler}} |{{item|Face Monster}} |{{item|Crimera}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Vertebrae}} }} }} {{flexend}} |{{item|Crimstone Block}} |{{item|Crimsand Block}} |{{item|Red Ice Block}} |{{item|Shadewood}} |{{item|Vicious Mushroom}} |{{item|Crimson Tigerfish}} |{{item|Hemopiranha}} |{{item|Crimson Crate}} |{{item|Deadland Comes Alive}} }} |{{item|The Undertaker}} |{{item|The Rotted Fork}} |{{item|Crimson Rod}} |{{item|Panic Necklace}} |{{item|Crimson Heart (item)|Crimson Heart}} }} The Crimson is an upgrade to the Corruption in a similar way to how Lead is an upgrade to Iron; in general, the stats on Crimson items are slightly better. However, in this case, it is not strictly better, as the Corruption has some very useful items like the Vilethorn, Worm Teeth (for Unholy Arrows), and Band of Starpower that have no counterpart in the Crimson.
 * title_resources=Notable Resources
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 * title_chest=Crimson Heart Contents
 * chest={{dotlist|dot=no
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Crimson monsters are perhaps more difficult than Corrupt ones. Cave generation is also different: instead of deep shafts, it contains one big neuron-shaped cave that you can walk down more easily. Crimtane replaces Demonite. {{dablink|For more info on dealing with the Crimson, see Guide:Surviving in the Crimson.}} }}

{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Biome|name=Ocean
 * color=#60BC9A
 * icon = BiomeBannerOcean.png{{!}}275px
 * intro=

{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|160}} (160)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |Shadewood Sword, Bow, Rally, Gem Staff }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Shadewood or Cactus }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Pink Jellyfish}} |{{item|Crab}} |{{item|Sea Snail}} |{{item|Squid}} |{{item|Shark}} |{{item|Orca}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Glowstick}} |{{item|Jellyfish Necklace}} |{{item|Purple Mucos}} |{{item|Black Ink}} |{{item|Diving Helmet}} |{{item|Shark Fin}} }} }} {{flexend}} |{{item|Coral}} |{{item|Seashell}} |{{item|Starfish}} |{{item|Palm Wood}} |{{item|Pink Jellyfish (bait)}} |{{item|Reaver Shark}} |{{item|Red Snapper}} |{{item|Sawtooth Shark}} |{{item|Shrimp}} |{{item|Swordfish}} |{{item|Trout}} |{{item|Tuna}} |{{item|Ocean Crate}} }} |{{item|Trident}} |{{item|Breathing Reed}} |{{item|Flipper}} |{{item|Water Walking Boots}} |{{item|Beach Ball}} }} Oceans are always found at the edge of the world, usually next to beaches containing Palm Trees and decorative seashells and starfish. Water Chests are found typically in the deepest parts. New characters may have problems working in this biome because of sharks and a lack of air supply. {{item|Gills Potion|s}} can help in this regard.
 * title_resources=Notable Resources
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 * title_chest=Chest Contents
 * chest={{dotlist|dot=no
 * outro=

This is also where you will find the Angler, who will help set you up for Fishing. You will definitely want to do some fishing in this biome -- the varied loot can provide for a bit of money, and if you catch a {{item|Reaver Shark|size=24px}}, you won't have to get a new pickaxe until Hardmode! On the Desktop Version however, the Reaver Shark will not take you as far. The Sawtooth Shark will last almost as long in place of an axe. }}

{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Biome|name=Floating Island / Floating Lake
 * color=#DDD
 * icon = BiomeBannerFloatingIsland.png{{!}}275px
 * intro=

{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Recommended Life|{{hp|200}} (200)|css=margin: 0.5em;flex: 1 1 auto}} {{infocard/box|title=Recommended Weaponry|css=margin: 0.5em;flex: 1 1 auto |{{item|Space Gun}} or other gun, or Ruby/Diamond Staff }} {{infocard/box|title=Recommended Armor|css=margin: 0.5em;flex: 1 1 auto |Silver minimum, better recommended }} {{infocard/box|title=Recommended Equipment|css=margin: 0.5em;flex: 1 1 auto |{{item|Gravitation Potion}}, {{item|Featherfall Potion}}, other buff potions }} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Harpy}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em;flex: 1 1 auto |{{dotlist|dot=no |{{item|Feather}} |{{item|Giant Harpy Feather}} }} }} {{flexend}} |{{item|Skyware Chest}} |{{item|Skyware Table}} |{{item|Skyware Chair}} |{{item|Gravity Banner}} |{{item|Sun Banner}} |{{item|World Banner}} |{{item|Cloud}} |{{item|Rain Cloud}} |{{item|Sunplate Block}} |{{item|Cloud Wall}} |{{item|Disc Wall}} |{{item|Glass Wall}} |{{item|Damselfish}} |{{item|Sky Crate}} |{{item|Place Above the Clouds}} }} |{{item|Shiny Red Balloon}} |{{item|Starfury}} |{{item|Lucky Horseshoe}} |{{item|Sky Mill}} }} Floating islands and Lakes are typically found around 475ft on small, at 500-700ft on medium, and at 600-1000ft on large maps. A small map can have up to 3 islands and a 1 Lake; medium maps up to 4 islands and 2 lakes; large maps up to 6 islands and 3 lakes. Each island contains a {{item|Skyware Chest|scale=0.6}}, along with ore deposits and unique Skyware blocks and furniture. Floating Lakes have a chance of containing Water Chests.
 * title_resources=Notable Resources
 * resources={{dotlist|dot=no
 * title_chest=Chest Contents
 * chest={{dotlist|dot=no
 * outro=

It can be difficult to find, reach, and loot floating islands. Although there are many ways to approach this problem, the quickest and most straightforward is to use {{item|Gravitation Potion}}s found in underground chests to fly across the map at the appropriate height. Featherfall Potions will make flying a bit easier to control and help prevent you to fall to your death. It's also recommended that you should set out in the day to maintain good visibility of {{item|Harpy|Harpies|scale=0.5}}.

Reaching the Space biome risks you to be surrounded by flocks of harpies, making floating islands hard to explore even with decent equipment.

If you do fight Harpies, because of their attacks from distance and erratic flight pattern, it can be quite difficult to hit them, and it’s advisable to use a weapon with a long range and high velocity: the {{item|Space Gun|scale=0.6}} (especially with Meteor armor) is perfect for this job, but any long-range weapon will do.

If you plan to revisit a floating island or lake, you may wish to drop a line of {{item|Rope}}.

It’s recommended to loot the floating islands as soon as you get Gravitation Potions, as it is fast and all the loot is highly useful -- removing falling damage eliminates a huge pain, and Starfury is a very strong weapon at this stage, making cave exploration immeasurably easier. }}

As you continue your exploration of the surface, you should also expect to encounter this event:

{{infocard|class=compact|css=margin-top: 1em;min-width:500px;
 * type=Event|name=Blood Moon
 * color=#AD5656
 * icon = BiomeBannerBloodMoon.png{{!}}275px
 * intro=

{{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Criteria|1 player with at least {{hp|120}} (120), and it's not a new moon.|css=margin: 0.5em;flex: 1 0 auto}} {{infocard/box|title=Chance|Given those criteria, 1 in 9 chance (11.11%) of occurring. |css=margin: 0.5em;flex: 1 0 auto}} {{flexend}} {{flexstart|css=margin:0.5em -0.5em -0.5em}} {{infocard/box|title=Enemies|css=margin: 0.5em; flex: 1 0 450px |{{dotlist|dot=no |{{item|The Groom}} |{{item|The Bride}} |{{item|Blood Zombie}} |{{item|Drippler}} |{{item|Corrupt Bunny}} or {{item|Vicious Bunny}} |{{item|Corrupt Goldfish}} or {{item|Vicious Goldfish}} |{{item|Corrupt Penguin}} or {{item|Vicious Penguin}} }} }} {{infocard/box|title=Enemy Drops|css=margin: 0.5em; flex: 1 0 450px |{{dotlist|dot=no |{{item|Top Hat}}|{{item|Brain}}|{{item|Wedding Veil}}|{{item|Wedding Dress}}|{{item|Shark Tooth Necklace}} |{{item|Money Trough}}|{{item|Bunny Hood}}|{{item|Suspicious Looking Egg}}|{{item|Pedguin's Hood}} |{{item|Pedguin's Jacket}}|{{item|Pedguin's Trousers}} }} }} {{flexend}} |{{item|Corrupt Seeds}} or {{item|Crimson Seeds}} |{{item|Deathweed Seeds}} |{{item|Mime Mask}} |{{item|Fallen Tuxedo Shirt}} |{{item|Fallen Tuxedo Pants}} |{{item|George's set}} or {{item|Fabulous set}} |{{item|Vile Powder}} or {{item|Vicious Powder}} |{{item|Silver Bullet}} |{{item|Throwing Knife}} |{{item|Evil Presence}} }} During a Blood Moon bunnies, goldfish, and penguins will turn hostile, and the spawn rate of all monsters on the surface will increase dramatically. Additionally, enemies will be able to spawn near NPCs and Zombies can force doors open.
 * title_resources=Notable Resources
 * resources={{dotlist|dot=no
 * outro=

{{item|Deathweed}} will bloom, and some NPCs will also sell special wares.

If you do not wish to fight in a Blood Moon, you should probably seek shelter underground where you will be beyond its effects. But with increased danger comes increased reward. {{dablink|For more on how to deal with the Blood Moon, see Guide:Defending against events.}} }}

= The Bosses: Dealing with the first three = Once you’ve survived the first couple nights and started work on a base, you should begin preparations for the upcoming boss battles, as even if you do not wish to go looking for them, they will come looking for you.

King Slime
King Slime is an entirely optional but fun mini-boss: none of its drops are necessary for game advancement.

King Slime can spawn rarely in Grass at the outer sixth of the world, by using a, or during a Slime Rain if the player kills 150 slimes. As with all monsters that can spawn naturally, the King Slime has a better chance of spawning while standing near a placed Water Candle or under the effects of a Battle Potion. It's extremely unlikely you will ever come across King Slime without planning to. King Slime is a good challenge for a beginning player and can be easily defeated by tactical use of terrain.

Still, savvy players may want to defeat King Slime for the chance of getting a good, as it's better than any hook obtainable up to this point.

Eye of Cthulhu
Eye of Cthulhu looks like an enormous Demon Eye. It travels through blocks, and it has two forms. During the first, he spawns Servants of Cthulhu while floating around the player, which drop hearts and stars on death. When the Eye’s health falls below half, it transforms into its second form, which charges the player more aggressively, no longer spawns Servants, and has lowered defense. In Expert Mode, it has increased health, changes into its second form earlier and gains a new rapid charge attack which increases in speed the less health the eye has.

Eater of Worlds or Brain of Cthulhu
After the Eye of Cthulhu is defeated, you should do the following:
 * Be sure the Dryad has a home: she sells Purification Powder, a less explosive option for getting to the Shadow Orbs and Crimson Hearts, and planters, a more convenient way to grow your plants.
 * Make sure to have at least 12 valid NPC houses and be sure you can access them without having to go all the way across the map. One way to do this is to have them linked by Pylons.
 * Start on your plants farm: Potions will be immeasurably helpful throughout the rest of the game.
 * Build a chest room: It's not a bad idea to have plenty of storage to put away items you'll find later on.

After this, head to the Corruption or Crimson to smash a Shadow Orb or Crimson Heart. Smashing your first orb or heart allows two events to occur in short order:

Every third Orb or Heart you smash in the world will spawn either Eater of Worlds or Brain of Cthulhu respectively:

Eater of Worlds
Eater of Worlds is a worm boss 50 segments long, each with their own health. When a segment in the middle is destroyed, the two severed parts will each become new worms, each with their own head and tail. This boss must be fought in the Corruption, and will disappear if you leave it at any point during the fight.

You will not face an easier boss in Terraria than EoW, especially in melee. The reason for this is when you swing your melee weapon as the worm glides past, is running itself into your swing and damaging many segments, when Ranged or Magic weapons at this point usually only hit 2-4 times per shot.

In Expert mode, you may not want to take the EoW aboveground because its damaging ranged attacks will no longer be frequently blocked if you do so.

Brain of Cthulhu
The Brain of Cthulhu is a boss that teleports and has two stages. In the first stage, it is invincible and surrounded by 20-30 Creepers. You must kill all the creepers before you can damage the Brain. In the second stage, you fight the Brain directly as it tries to charge you.

Skeletron
To gain entrance to the dungeon, Skeletron must be defeated. To summon Skeletron, talk to the Old Man in front of the dungeon at night.

= The Late Pre-Hardmode = The three late pre-hardmode biomes — the Underground Jungle, Dungeon, and Underworld — are all of the roughly similar difficulty and can be done in any order or concurrently.

The Underground Jungle
Be on the lookout for the following loot and materials in the underground jungle:


 * Feral Claws: These will increase your melee speed, and can prove very helpful later on in hardmode.
 * Anklet of the Wind: This greatly increases your movement speed without having to be charged up, and can also be tinkered with Spectre Boots and an Aglet to make Lightning Boots.
 * Bezoar: Immunity to poison extremely useful while you're in the Underground Jungle, and this accessory is very helpful when coming up against Queen Bee. This accessory is also needed to craft the Ankh Charm later on.
 * Honey: This will give you a healing buff upon touching it and is therefore very useful in boss arenas. Consider bringing Buckets along to pick it up.
 * Stingers and Jungle Spores: These can be used to craft gear that's useful against some of the upcoming challenges.
 * Vines: These can be used to craft an Ivy Whip, which allows you to grapple to three different spots.
 * Flower Boots: These are useful for creating farms for harvesting hay, critters, and strange plants.

Queen Bee
Queen Bee is not difficult to fight with at this stage in the game. Her charge attack is predictable and easy to dodge, and you can stand in the honey for a big healing boost.

Many of the Queen Bee's drops may be better than what you already have. Even if they aren't, farming Queen Bee is a good source of income before Hardmode. Plus, the Bee mount is the earliest mounts that can fly, although it's slow on land and hates water.

The Dungeon
Make sure to get the following loot before leaving the Dungeon:
 * Shadow Key: This item can unlock any Shadow Chest in the Underworld. These chests contain many weapons which are unrivaled in power in easy mode and often still remain decent in early hardmode.
 * Cobalt Shield: Protection against knockback can be invaluable. The Cobalt Shield can also be tinkered with an Obsidian Skull to make an Obsidian Shield, which will prove very valuable in the Underworld as well.
 * Muramasa: This is one of the swords used to make the Night's Edge, which is useful to have before Hardmode.
 * Water Bolt: This weapon's piercing and bouncing projectiles can wreck any enemy in the Dungeon, Jungle, and Underworld.
 * Valor: Like all yoyos, this can help greatly in tight situations.
 * Handgun: This weapon is a strong, reliable ranged weapon, provided you can click fast enough. Can be upgraded into the more powerful Phoenix Blaster.
 * Nazar: Although not very useful outside the Dungeon, this accessory is needed to craft the Ankh Charm. It is highly recommended to farm for this accessory before unlocking the Hardmode dungeon, as the Cursed Skulls which drop it will become much rarer then.

The Underworld
The Underworld is the hardest pre-hardmode biome, and the last biome that players explore.

The greatest danger working in the Underworld is, unsurprisingly, the wide expanses of molten lava. There are many tools which you can use: one these is probably the Water Walking Potion. The Lava Waders are the ultimate accessory in the Underworld, although it can be difficult to find all the components. Otherwise, the Lava Charm is an invaluable aid. If you have neither of these accessories, Obsidian Skin Potions are a fantastic alternative. When used, the potion gives you a four-minute invulnerability to lava. There is no breath meter in lava, so as long as you have potions, you can stay in lava indefinitely.

Hellstone mining is quite time-consuming and is the main reason to spend time in it. You'll need an Obsidian Skull or better to prevent Hellstone ore and bricks from burning you. Abundant deposits of Hellstone spawn next to the buried Ruined Houses, and instead of going to burrow deep into the ash and build lava channels, mine the ones that spawn close to the walls. Monster spawn rates are low in the Ruined Houses, and the buildings prevent most of them from bothering you, except the Fire Imps and Bone Serpents which can penetrate blocks. You can block the Fire Imp shots with any weapon or projectile, including your swinging pickaxe.

Be mindful that if you kill a Voodoo Demon, you better be ready to get under that before it drops into the lava, or you will be in for a nasty fight you're not prepared for. Should you accidentally awaken the Wall of Flesh, you cannot escape. Using a Magic Mirror will result in your death.

= Activating Hardmode = Defeating the Wall of Flesh will activate Hardmode. Hardmode is pretty self-descriptive: routine tasks can become difficult and time-consuming once there, and due to this, it's wise to complete any tasks and preparations you can before entering hard mode.

Preparing For Hardmode
At this point you have no deadlines or threats looming over you. You should be more-or-less the master of all you survey, and you have a wide variety of resources available. This is a good time to do large projects like bases or farms, though you should keep in mind that depending on location, your base or arena might end up in an infected biome.

The following is a list of preparations you may wish to consider before summoning the Wall of Flesh:


 * Obtain maximum Health and Mana if you have not already done so.
 * Craft Hellstone equipment. Hellstone equipment is the best equipment available in Pre-Hardmode, although you may have reason to prefer Shadow armor, Crimson armor, Meteor armor, Necro armor, Jungle armor, or Bee armor to Molten armor. Night's Edge is the highest-tier sword, the Phoenix Blaster is the highest-tier gun, the Imp Staff is the most powerful minion, and Hellwing Bow the most powerful bow. Some players may prefer to use some of the Queen Bee counterparts: the Bee Keeper, Bee's Knees, or Hornet Staff. Note however that the summoned bees will rapidly become much less helpful in Hardmode due to generally higher enemy defense. The Molten Hamaxe can easily replace your previous hammer and axe, while the Molten Pickaxe is the strongest pickaxe available.
 * Ensure you've obtained key accessories and items. Many of these accessories are produced at the Tinkerer's Workshop, and the components will be that much harder to get during Hardmode.
 * If at all possible, you should have created the following: Cell Phone (the last component likely being a Tally Counter from the Dungeon), The Grand Design, Frostspark Boots (or Terraspark Boots on Desktop), and one of the Horseshoe Balloons.
 * Other useful equipment includes Lava Waders, Frog Leg, Jellyfish Diving Gear, Flying Carpet (if you have a Pyramid), Obsidian Shield, Celestial Cuffs (only available in a Corruption world), Mining armor.
 * You will need a good multi-line Hook such as the Ivy Whip, Fish Hook, Skeletron Hand, or even the Slime Hook.
 * And some company: At least one minion as above, one or more Mounts, and a light pet (TheShadow Orb or Crimson Heart are basic and easy to obtain, while the Magic Lantern can help when exploring).  A regular pet is optional and purely a cosmetic, but by now you should have some appealing choices.
 * Some items are meant for later: Feral Claws will start you on the path to the Fire Gauntlet, while a Bezoar and Nazar will be the first components of an Ankh Shield  (and that Obsidian Shield will be the last).
 * Ensure you have a sufficient stock of Potions.
 * You should have a farm for herbs (see Guide:Gardening)
 * Build secure fishing bases in all the major biomes, especially near your base. You might also want to build a lake of Honey for Honeyfins.
 * Find Demon or Crimson Altars. Most Altars are found in the Corruption and Crimson respectively, so explore each Corruption or Crimson biome in the world. They need to be easily accessible when hardmode begins (further information in the Hardmode section).


 * Reforge Weapons and Accessories. You'll generally want extra Defense, Damage, or Critical hit chance.
 * Build a surface Mushroom biome with a house for the Truffle NPC, as gathering the necessary materials will become much harder during hardmode.
 * Make sure you have 21 valid NPC houses, so you don't have to worry about building them later on. In fact you should have rather more that that, but they shouldn't all be together.  Have spare houses at all your bases, so that if a bunch of NPCs find themselves in the middle of the Corruption/Crimson, they have someplace to respawn.

Here are some more open-ended ideas, many of which qualify as "big projects".


 * Creating quarantines. You probably want to limit the spread of the Corruption or Crimson, and the Hallow as well.  Without preparation, the Hallow and your "evil" biome will quickly divvy up your world between them.  There are a few reasons this is bad: These biomes are very hard when first entering Hardmode; NPCs will not live near Corruption or Crimson (which is a problem if your town gets converted); and there are some unique drops and resources only available from uninfected biomess. You  should particularly protect the Jungle and Ocean biomes in their natural state; in particular, if  Jungle or Mushroom Biome gets taken by evil, the conversion is irreversible.   To block the spread of the biomes, you will need to dig tunnels and hellevators to chop up your world, restricting any infection to a relatively small area (or at least keeping it away from your more valuable areas).  For more information on building quarantines, see Guide:Maintaining world purity.
 * Rearrange the Landscape. Is there some area that's inconvenient to you?  Change it!  Want a lake or a mountain someplace?  You can do it now.
 * Rebuild your base. This is a good time to reconsider your main base(s) and rebuild them to something that has space for all your crafting stations and chests, with extra for growth, and houses for convenient access to favored NPCs.
 * Farming money. Some vendors sell new, but expensive items in Hardmode and reforging Hardmode weapons is extremely expensive. For more information on farming money, see Guide:Making money.

Wall of Flesh
Once the Wall of Flesh is defeated, you will receive a message which says "" You have now entered Hardmode.

= Hardmode =