Risk of Rain -
Whenever you kill an enemy they drop experience and gold. This gold is used to buy upgrades or items, a main part of this game. Chests can vary from 25-50 on the first level, but it increases every level. There is also Imp Shrines, which when activated spawns 5 imps. If you kill those imps within the time limit you are given a reward. You can use the statue twice before it is unusable. Finally, there are Health Shrines and regular Shrines. Health Shrines require Health, and have a chance to give you an item. The same is for regular Shrines, but just with gold. Whenever you fail or succeed any shrine, the price goes up. For all shrines, it goes away after winning twice.