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 Ubuntu Linux. Fully playable roguelike game with extensive RPG elements and huge background world. Including graphics, quests, dozens of races and classes, a skill system, an extensive magic system, a completely revised and modernized user interface with extensive support for new players and naturally tons of bug fixes since the last public release. Press F10 in the game to switch between ASCII and graphical mode.
See Adom.de for a full list of changes (everything from release 60 upwards in the list!).