A rouge-like dungeon crawler where all you have to do is stay alive as long as you can and keep going deeper, maps are procedurally-generated (different every time) .

Unlike most side-scrollers, in this one you don't have to memorize maps and dungeons because it's different every time. A lot of replayability.

You just run around being a goat, and goats have a lot of fun.

This is a decient game, but it's not complex. It's lack of complexity is what singles it out as something worth looking into depending on your needs and wants in a game.