Nightdive Studios is on a mission to bring back lost and forgotten games. They have released some very true to the original updates of games like Quake, System Shock, Turok, and Dark Forces.

They also act as kind of preservationists. They contact the original studios to archive and include a lot of extras with the games. Quake 2 includes behind-the-scenes making of the game with concept art, discarded enemies, videos, etc. The PC source code for the original System Shock was found in a subfolder on a Mac. The most recently did this with a re-release of one of my favorites: System Shock 2.

I hope they keep digging up these old classics and making them available for generations to come.