Artifact Gate

An artifact gate is the location where an artifact is spawned if the player completes the task to unlock the artifact. Some of these tasks can be done by every class with no items (e.g. on Sunken Tomb, you can just drop down), but some of these tasks require special classes, specific items, or some mechanic abuses (e.g on Sky Meadow, you have to crack up the ground, this can't be done by the Commando, but the "Parent" can using its ground slam).

The name of this structure is given to it by the community (we need someone to look up the data to confirm this name or get the real name).

The following maps have a chance to spawn an artifact gate: These maps will never spawn an artifact gate:
 * Dried Lake - Ground Zero
 * Desolate Forest - Ground Zero
 * Damp Caverns - Fungal Haven
 * Sky Meadow - Field of Sprites
 * Sunken Tomb - Underwater Catacombs
 * Ancient Valley - Frozen Tundra
 * Hive Cluster - Deep Undergrowth
 * Magma Barracks - The Core
 * Temple of the Elders - Holy Grounds
 * Boar Beach - Simpler Times
 * Risk of Rain - UES Contact Light