Halo: Combat Evolved (PC port)

Summary

Halo: Combat Evolved was originally going to be made for the PC & Mac platforms, but it was changed to be written for the Xbox. Then, on 09/30/03, Gearbox Software created Halo for the PC and added a few extra features, too. (It should be noted, however, that in the process of developing the port, the ability to play co-op in multiplayer mode was lost entirely.) Later, a Halo Mac was made.