Chasms

A Chasm is a deep vertical tunnel whose walls are made of Ebonstone, with Ebonstone Wall backgrounds, found throughout The Corruption. They are usually home to continuously-spawning swarms of Eater of Souls. Chasms generally reach depths around where the Cavern layer begins. When, instead of the Corruption, the Crimson biome is generated, Chasms are made up of Crimstone and Crimstone walls as a background.

At the bottom of most Chasms, a Shadow Orb can be found behind a small wall of Ebonstone. To reach the Shadow Orb, the player must use at least a Nightmare Pickaxe, Bombs/Dynamite, or use Purification Powder to turn the Ebonstone into common Stone and mine it with any Pickaxe.

There is usually a horizontal underground tunnel connecting most of the Chasms in a given Corruption area. Demon Altars are common in and around this adjoining tunnel.

Tips

 * Players without the ability to mine Ebonstone, and who have not yet obtained a climbing aid like the Grappling Hook, will want to avoid falling into Chasms. Some Chasms can be very difficult or impossible to climb out of by merely jumping between ledges.
 * Its best to use a weapon that has long reach when going down the Chasms to knock out Eater of Souls that usually cluster on the other side of the Chasm.
 * If you have the chance it's best to cover off the chasm to avoid falling into it at a later time.