#5 Return to Castle Wolfenstein - [ PC ]
Muse software released the first version of Castle Wolfenstein for the Apple II back in the day. It was a top-down action title, where you had to flee a nazi stronghold during World War II. The game went first-person view with Wolfenstein 3D, but the game truly came alive with Return to Castle Wolfenstein. Powered by a revamped Quake III play engine, Return started as a typical WWII first-person shooter...but then slowly turned ugly as you ventured into Nazi labs and excavations of hallowed ground, and squared-off against some of the creepiest bosses ever created. Unfortunately, Wolfenstein remains sequel-less to this day.