The Chambers Beneath by Cyningstan Retro (on Twitter) is a game for msdos with CGA or Hercules video card. It's a RPG/roguelike/dungeon crawler video game, which I like personally.

No dosbox, PCEM or PC XT ? It's not a problem, there is a windows download too which will configure all what is needed to play the game on your current PC. You can also play The Chambers Beneath online.

There are also other games on Cyningstan Retro web sites, including two C libraries used for the programming of these games : CGA library and keyboard library.