Card game collection by Saga Musix, programmed in summer 2005 in QuickBasic 4.5.
In DOSBox, run with plenty of cycles. Start with either MENU.EXE or HELPME.EXE (if you're stuck ;).

VGA 80x50 text mode, no sound, keyboard + mouse.
Computer enemies can cheat in "Mau-Mau" by peeking into your cards
because I had no idea how to AI back then, but the game is not too unfair (I think).