Prince of Persia, Lemmings, all of the Infocom games, PageMaker, Civ I, Armor Alley (which is multiplayer, btw), bolo (likewise), Shuttlepuck Café, Tetris, SimCity.

I wouldn't put Mac OS 7.6.1 on it, I'd go for System 7.1 with a few extras like SoundManager, ThreadManager, later version of QuickTime if you need it.