NetHack
If you are looking for a real challenge to test your skill and endurance, then NetHack is probably the game for you. But I must warn you: You are going to die a lot of times in this game for no apparent reason, because that’s how the game was built. Just try to think of a game that has no graphics and sound, and when you die, you die permanently. Additionally the game features an interface that is confusing as hell.













