This is a list of Halo 3 Achievements. There is a total of 49 original achievements that were shipped with the game, worth a total of 1000 Gamerpoints, with another 30 DLC (Downloadable Content) achievements worth 750 Gamerpoints. Some achievements unlock certain Armor Permutations. Getting 1000/1000 GS from the original achievements will get you the Katana and Security Helmet.