Guide:Surviving in the Crimson

Surviving in the Crimson is almost impossible for unprepared players, yet it it very essential to the game. Here's what you'll need to do to survive in the Crimson.

Armory Essentials
While the Corruption will try to kill explorers with large chasms, the Crimson uses its harsh mobs to destroy any player who comes in. Because of this, extra preparation is necessary. Tungsten or Silver armor, along with at least 140 health is highly recommended, but you should be able to survive the dangerous enemies as long as you can keep a good distance from them. If you are melee, it pays to have a good broadsword made of Gold/Platinum.(or Crimtane from the Eye of Cthulhu.)Still, even melee players should have a bow or an agile weapon that can attack fast like the bladed glove or the swordfish because keeping monsters at bay is key. The same standard applies to magic and ranged, as long as you can keep away the enemies, you'll be fine, although for ranged you should try to have flaming arrows or better.

Meet Pre-Hardmode the enemies (and their weaknesses)

 * The Crimera is the crimson-counterpart of the Eater of Souls. They will hover above you, and sometimes swoop down and attack you. Both the Crimera, nor the Eater of Souls will dare attack you if you are submerged in water. Furthermore, they are very easy to keep at bay because they are susceptible to knockback, however don't let them fool you, because you'll still want a ranged weapon just to make sure you aren't hit.
 * The Face Monster is like a zombie, except taller, and has lot more knockback resistance. However, it's AI is quite wimpy, and if you are cornered, you can simply jump over it. Ranged weapons help a lot with keeping them at bay, so make sure to always carry one around in the Crimson.
 * Blood Crawlers are living nightmares for anybody who encounter them, because they don't have any real weakness. (They're almost immune to knockback when they're on walls.) All you can do to survive against them is hope that your ranged weapon will get it away. However, if there are multiple spiders, make sure to have a melee or magic weapon that can damage them all at the same time.

What to do
The Crimson is a very important biome with lots of things to do. The main reason why people go there is for its coveted treasure that are gained from Crimson Hearts. To find a Crimson Heart, go inside one of the hills that jet out of the Crimson. The opening should be there for you. As you go in, you'll find more Blood Crawlers and Crimson Altars. Finally, there will be a large drop. Unless you have a Lucky Horseshoe, you'll have to rope down. Be careful of Blood Crawlers on your way down. Look around. You should see at least one red heart. That is a Crimson Heart. However, don't even try to mine through it. If this is your first time in the Crimson, you won't be able to, because you must have a Deathbringer Pickaxe or better to do so. Prior to actually going to the Crimson, make sure you have either explosives from the Demolitionist, or purification powder from the Dryad. The hearts themselves can be destroyed with hammers or explosions. Basically, the first Crimson Heart will give you the Undertaker and some musket balls, along with the message, A chill goes down your spine... The next one will drop one of the five Crimson Heart items with the message, Screams echo around you... Do not break the third Crimson '''Heart unless you are very confident that you can kill the Brain of Cthulhu. '''It will still drop loot, but instead of a message, it will spawn the Brain of Cthulhu. For help killing the Brain of Cthulhu, see some tactics here, and for more on Crimson Hearts, click here.

Optional Tips

 * Build an Outpost, or in other words a building to help you deal with the Crimson. It should border the Crimson and the biome behind it, with anything from a good place to survive, to a minecart rail to port you past the Crimson if you'd like to avoid it. Although this is optional, it may help you a lot.
 * Use an arena with platforms to kill the Brain of Cthulhu. To summon him in the arena, use a Bloody Spine
 * If you can't survive the Crimson yourself, set up a multiplayer server so your friends can help.
 * When killing the brain of Cthulhu, don't give up so soon, as you will eventually get the Tissue samples and Crimtane ore needed to make Crimson armor. Once you have that, you can easily survive.