Achievements (Halo: Combat Evolved Anniversary)

There are a total of 44 achievements in Halo: Combat Evolved Anniversary, which are worth a total of 1,000 Gamerscore.

Trivia
Halo: Combat Evolved Anniversary is the only game to date in which all of its achievements can be unlocked offline. All other games require online play and the purchase of an Xbox LIVE gold membership to unlock some of their achievements.