Ancient Domains of Mystery (ADOM), Caverns of Chaos, by Paweł Marczewski.

Main dungeon of my favorite roguelike game. I spent hundreds of hours in these dungeons. They are procedurally generated and look different each time, but there always is roughly the same set of special rooms and features. I drew the map a year or two after I last played the game, so the order of rooms is probably wrong in some places, but otherwise, the memories are still vivid.

The map may be a little hard to understand for someone who hasn’t played the game - roguelikes are about “killing letters to collect punctuation”, so I would have to tell you that all these ‘P’s are animated trees I managed to make angry this one time, ‘&’s signify fierce demons that killed many a good adventurer, that room with ‘+’s is a graveyard full of undead, the lone ‘f’ is a Cat Lord that will attack you if you are foolish enough to kill a feline during the game (and if you’re careful enough not to, will give you a fabulous reward). There are five elemental temples, caves full of static electricity (and dragons), ancient dwarven town and even a casino.

[Josh says: awesome seeing roguelikes getting some love.  There’s a really great Nethack map coming up in a few days as well.]