This might not be a very depth and complex roguelike but this game is about entering a dungeon, collecting loot and killing creatures. It is random generated and pretty easy. Just visit the site for further information. There is also a pretty big demo available which gives you a good impression about the game.
Hack, Slash, Loot!7
Although now that I have played the demo for a while, the game still lacks some stuff. But it is kind of neat.