Pixel Dungeon

Taking inspiration from Brogue and any number of roguelike predecessors, this game pits players in one of four fantasy player classes against a randomly-generated top-down line-of-sight dungeon where they must contend with random enemy encounters, hunger daemons, boss fights and quests issued by the ghosts of slain adventurers. Tapping a location on the touchscreen takes the avatar there, or optionally interacts with whatever is located there -- attacking monsters, searching in the high grass or acquiring objects. Inventory management is a big part of the game, as is the trial-and-error experimentation on such unknown magic items as are discovered.