Source code is available for this game.
Star Trek
SDS SIgma 1971@827
BSD Trek
Unix 1976@839
Rogue
Multi-platform Computer Games 1980@593
Nethack
Multi-platform Computer Games 1987@629
Angband
Multi-platform Computer Games 1990@608
Dungeon Crawl Stone Soup
Multi-platform Computer Games 2006@864
Brogue
Windows 2010@2064
Infra Arcana
Windows 2010@615
Tales of Maj'Eyal
Windows 2012@1332
DoomRL
Windows 2013@594