ADOM (Ancient Domains Of Mystery) is one of the most successful roguelike games ever created, with downloads in the millions and many more every day. ADOM was the first roguelike to add a true role-playing experience to the roguelike genre, and boasts a brilliant mix of story, RPG, exploration, and intensely strategic and flexible combat.
The current ADOM version for Linux (64 bit, Debian 8). Fully playable roguelike game with extensive RPG elements and huge background world. Including graphics, tutorial mode and more. Press F10 in the game to switch between ASCII and graphical mode.