Age of Empires (1, 2 and Mythology)
Sim City 2000
Kings Quest
Realmz
Rescue!
Battle Chess
Duke Nukem 3D
Prince of Persia
Wolfenstein 3D
Tomb Raider 3
Star Trek: Starfleet Academy
Okay not Mac but Apple II
Oregon Trail
Odell Lake
I couldn't help myself and went a bit over. Countless hours were wasted on these games as a kid.
I switched to Windows gaming around 2005. What was the point of gaming on a Mac? It cost a lot more, new Mac games were old Windows titles and most of the good ones were never ported. I suppose the same could be said for Windows vs consoles. Except the Windows versions may have modding and many of the games I prefer are PC only since they are only playable with a keyboard and mouse.