Secret world seeds

Some world seeds have been discovered as secret easter eggs that generate worlds with strange or unique features.

Secret seeds can produce worlds with characteristics that would not be attainable through normal world generation. They can affect not only the usual world structure, but also the game's mechanics while playing in that world. They may change enemy statistics and behavior, item drops, graphics, theme music, and more.

Secret seeds use unique world-generating mechanics that differ from normal seeds. Using a secret seed overrides the normal use of seeds as a source of randomness, and two worlds created via the same secret seed will not necessarily be identical.

Drunk World



 * Seeds:  or

This seed references the date of 1.4's official release, 5/16/2020, and generates a strange world referred to in the source code as. It has therefore come to be referred to by the Terraria community as "Drunk World."


 * The Party Girl replaces the Guide upon entering the world for the first time.
 * Visiting this world once permanently unlocks a "Music" option in the Party Girl's menu, to toggle the game's default soundtrack for the Terraria: Otherworld soundtrack. Once unlocked, the option carries to all players and all worlds. Every song in Terraria's soundtrack is replaced with an Otherworld equivalent. In multiplayer, only players who unlocked the "Music" option themselves will hear the change.
 * Both ore variants for each tier generate, instead of just one. This applies to Hardmode ores as well: It requires destroying six Demon or Crimson Altars for all ores instead of three. Destroying the first three Altars will generate Hardmode ores as normal, and destroying the next three Altars will generate the other variants. Destroying more Altars will repeat the cycle, generating more veins of those ores.
 * Living Mahogany Trees can generate anywhere underground, not just in the Jungle.
 * Moon Lord Legs and Red Potion items can generate in Chests with and  chance to appear, respectively.
 * Marble and Granite caves swap their structures and tiles.
 * The Underground Desert can generate on either side of the world, making it possible for the Underground Desert, Snow, and Jungle biomes to all be on the same half of the map.
 * The Jungle Temple is painted green and is much larger than normal, and Wooden Spikes generate extruding by 2 tiles instead of 1.
 * Bee Hives are larger, with elevated spawn rates that match Blood Moons, and contain multiple Larvae.
 * The Underworld's horizontal layout is inverted, with the middle third as a continuous lava lake and the two thirds at the edges containing Ruined Houses.
 * Both Oceans always generate with an "ocean cave," which normally has just a 1/4 chance.
 * Gem trees and Underground Rich Mahogany trees are much more common.
 * Moss is less frequent and cannot generate in the vertical middle third of the map.
 * Scaled-up enemies are slightly larger and scaled-down enemies are slightly smaller (eg. Little Eater and Big Eater).

Surface

 * The surface layer is slightly thicker, with the underground starting slightly lower than normal, relative to map height.
 * Living Trees generate much more frequently, and may be clustered and interconnected underground.
 * Chance for Vanity trees to replace a forest tree during world generation increased from 5% to 15%.
 * Desert has a much higher chance of generating with a Pyramid.
 * Cactus placed during world generation have a chance to be larger than usual.
 * Floating islands are now either deserts with sand instead of dirt and/or snow biomes with snow instead of dirt, with a corresponding Water Fountain.
 * The Jungle generates without a tunnel to the surface, unlike normal worlds would.
 * Jungle and Snow biomes generate on the same side opposite of the Dungeon.

World Evils

 * Both World evils generate, each on opposite sides of the world.
 * Both the Corruption and Crimson Biome Chests are present in the Dungeon.
 * Shadow Orbs and Crimson Hearts share a single counter. Only the first of either will be a guaranteed firearm, and every 3rd total will spawn its boss.
 * Each dawn, the main world evil switches, which affects which items NPCs sell during Blood Moons and Eclipses, and which player-made evil Mimic will spawn.
 * Both Demon Altars and Crimson Altars appear in their respective chasms. However, only one type of altar will generate in the world outside of their chasms, regardless of the biome where they appear.
 * When the world transitions to Hardmode, only one evil is chosen to be opposed to the Hallow.
 * The world icon in the world selection menu shows a tree infected with both world evils.

Dungeon

 * The surface entrance to the Dungeon is completely removed. The Dungeon instead generates underneath a "dead" Living Tree, with leaves painted brown to differentiate it from other Living Trees.
 * The Old Man is placed in a pre-generated house underground, making it harder to fight Skeletron.
 * The Dungeon itself is painted red, yellow, blue, purple, or brown.
 * Contains Chippy's Couch.
 * More of the Dungeon depth can be traversed without spawning Dungeon Guardians, but going below a depth of 265 will still spawn them.
 * The Cultists also spawn in the Old Man's underground house.

While generating

 * Generation descriptions and tips become random numbers that change every tick (except when "placing traps").
 * The background shows a Glowing Mushroom biome, with clouds that resemble Redigit's head. The moon moves backwards and resembles a glowing smiley face, referencing a popular astronomy hoax. Once the world finishes generating, it is possible to go back to the main menu with these effects still visible.
 * The outline of the progress bar rapidly flashes between Corruption and Crimson.
 * The Title (Console) theme music plays, instead of the normal title theme.
 * The Terraria logo spins out and disappears along with the version number.

Not the bees



 * Seed:  or   (case insensitive)

This seed references a meme from the 2006 remake of the film The Wicker Man. It generates a world dominated by bee-themed biomes and bee-related items and structures.


 * While generating, the generation descriptions all say "Generating bees".
 * The starting NPC is the Merchant instead of the Guide.
 * All Water is replaced with Honey, except on Floating Islands, the Dungeon, and in the Cavern layer at the far edges of the world.
 * Jungle replaces Forest.
 * Hive Blocks replace Stone Blocks.
 * Honey Blocks replace Sand Blocks at the Ocean.
 * The Snow biome is composed entirely of Hive blocks.
 * Larvae generate abundantly and can appear anywhere.
 * The Dungeon is painted orange.
 * Queen Bee spawns at the edge of the world.
 * Most of the Mud Blocks in the Glowing Mushroom biome are replaced by Crispy Honey Blocks.
 * Much of the lower cavern area is Glowing Mushroom biome that extends down to the Underworld.
 * The Desert and evil biomes are not affected.

For the worthy



 * Seed:  (case insensitive)

This special world's features aim to drastically increase the difficulty of the game. It is referred to in the code as.


 * The world generation screen messages are spelled backwards.
 * All enemy damage and defense are increased.
 * Blocks take only half as many hits with a Pickaxe to break, rounded up.
 * The Demolitionist replaces the Guide upon entering the world for the first time.
 * Some water pools throughout the world are replaced with lava.
 * Pots drop lit bombs that shortly explode, instead of collectible Bomb items.
 * Trees drop lit bombs when hit, instead of their usual items.
 * Spider Nests, Granite Caves, Marble Caves, and Glowing Mushroom biomes are much more common.
 * Glowing Mushroom biomes are much larger.
 * Floating Islands are always infected with the world's evil, with matching Water Fountains.
 * Skyware Chests are replaced with locked Gold Chests.
 * The Dungeon is painted vibrant colors and filled with many more Spike traps. Additionally, the surface building of the Dungeon is inverted (the opening faces towards the nearest Ocean).
 * The Jungle Temple is painted green and is much larger.
 * Wood Chest/Water Chest loot can contain a single Dirt Block along with their standard loot.
 * Red Potions can generate in chests. When consumed, these apply 3 random 30-minute buffs (instead of applying many debuffs like in other world seeds).
 * Bunnies are replaced with Explosive Bunnies.

Underworld

 * The Ash Block ground is speckled with 1 block-sized pockets of lava.
 * Digging up Ash Blocks will sometimes trigger other nearby Ash Blocks to fall (be affected by gravity), similar to Silt. This behavior is closely related to that of Cracked Dungeon Bricks.
 * All Ruined Houses are made of Hellstone Bricks.
 * All Demons are replaced with Voodoo Demons.

Bosses

 * Many bosses and/or their minions are either larger or smaller than normal:
 * Larger: Skeletron, King Slime, Destroyer and its Probes, Plantera, Eater of Worlds, Skeletron Prime, Queen Bee, The Hungry.
 * Smaller: Golem, Wall of Flesh, The Twins.
 * Brain of Cthulhu spawns with 40 Creepers, twice as many as normal.
 * Skeletron Prime's bombs destroy blocks.
 * The Lunatic Cultist and Empress of Light cycle faster between attacks.
 * The Queen Bee dashes quicker, spawns more bees, and shoots stingers faster.
 * The Destroyer has twice as many segments (160).
 * The Wall of Flesh has +50% health (applied before any Expert/Master difficulty bonuses).
 * The Eater of Worlds and Wall of Flesh receive small defense bonuses.

Trivia

 * The discovery of Drunk World originated from an image posted in a tweet by Redigit, featuring the release date and the new world generation screen.
 * The moon forming a smiley face in the world generation screen of Drunk World is a reference to a meme stating that "The moon, Jupiter and Venus will form a smiley face on May 16th, 2020", the date 1.4 was released.
 * The Moon Lord Legs is likely Redigit's answer to a petition to add Moon Lord's legs to the 1.4 version of the game.
 * "Not the Bees!" is also an achievement for firing a Bee Gun with a full set of Bee armor equipped.
 * "For the Worthy" relates to the tooltip for Red Potion. It is the only world where the potion grants buffs rather than debuffs.
 * In "For the Worthy", the locked gold chests on Floating Islands originated from earlier versions of Terraria, in which Floating Islands contained locked chests. This caused them to be generally inaccessible until defeating Skeletron.
 * Relatedly, Ash Blocks could collapse at random in earlier versions of Terraria in a similar manner to the way they do in "For the Worthy" worlds.