KOTOR 1&2, Republic Commando, PGR2
All the SSI gold box engine games: Pool of Radiance, Curse of the Azure Bonds, Secret of the Silver Blades, Pools of Darkness, Gateway to the Savage Frontier, Treasures of the Savage Frontier, Champions of Krynn, Death Knights of Krynn, The Dark Queen of Krynn along with Countdown to Doomsday and Matrix Cubed.
Wizardry IV: The Return of Werdna - let's map the Cosmic Cube again! (bwahahahaha!)
Wing Commander, Wing Commander II: Vengeance of the Kilrathi, Wing Commander III: Heart of the Tiger and Wing Commander IV: The Price of Freedom with all expansions, plus Wing Commander: Privateer and its expansion (okay, fine, I'll go get 'em [well, IV isn't out] on GoG and play them on my PC...)...
Sam & Max Hit the Road (actually, I'll take any and all of the LucasArts adventure games that haven't been re-released).