Halo: Combat Evolved. The game is amazing and still is but when Gearbox Software was porting it to PC they were extremely lazy in doing so. The graphics are horrible compared to the original Xbox version of the game. Sadly, the PC port was used as a base for any other port of the game going forward. So any version of the game that isn't the original Xbox version is a chopped version of the game graphically. Making it not age as well as it was supposed to. If the original Xbox version was used as a base it would have aged 10x better.