Keyes (achievement)

Keyes is an achievement in Halo: Combat Evolved Anniversary and Halo: The Master Chief Collection. It is awarded for completing the campaign level Keyes on any difficulty.

In the original Halo: CE Anniversary it is represented by the Roman numeral of "IX" over a darkened version of Anniversary's logo and is worth 25 Gamerscore. In The Master Chief Collection it is represented by a screenshot of the area beneath the Truth and Reconciliation and is worth 10 Gamerscore.