- Halo 3
- Halo 3 Completion Estimates
How long does it take to beat Halo 3?
The estimated time to complete all 49 Halo 3 achievements is 40-50 hours.
This estimate is based on the median completion time from 553 TrueAchievements members that have completed the game.
These estimates are only for the base game - please see individual DLC packs for their estimates
Site Completion Estimates