List of discrepancies between Halo: Combat Evolved versions

Halo: Combat Evolved has been released on a number of platforms since its original Xbox release in 2001. Some of these versions have become infamous for diverging from the original game in some areas. This page contains a list of discrepancies between these versions of Halo: Combat Evolved.

Versions of the game
The following is a list of the different versions of the game that have been officially released:


 * Halo: Combat Evolved
 * Halo Demo
 * Halo: Combat Evolved
 * Halo: Combat Evolved for Macintosh
 * Halo: Combat Evolved Trial
 * Halo: Combat Evolved Trial
 * Halo Custom Edition
 * Halo: Combat Evolved
 * Halo: Combat Evolved Anniversary
 * Halo: The Master Chief Collection
 * Halo: Combat Evolved Anniversary
 * Halo: The Master Chief Collection

List of discrepancies
{|class="wikitable" width=100% style="align:center!important;" !Discrepancy !style="min-width:10%"|Halo: CE Xbox !style="min-width:10%"|Halo PC PC, Mac !style="min-width:10%"|Custom Edition PC, Mac !style="min-width:10%"|Halo: CE 360 BC !style="min-width:10%"|CEA 360, XB1 !style="min-width:10%"|MCC XB1 !style="min-width:10%"|MCC PC !colspan=999|

Graphical
3840x2160 120 fps No !colspan=999|
 * Resolution
 * 640x480
 * User-determined
 * User-determined
 * 640x480
 * 1152x648
 * 1920x1080
 * 1920x1080
 * User-determined
 * Frame rate target
 * 30 fps
 * Hardware-dependent
 * Hardware-dependent
 * 30 fps
 * 30 fps
 * 60 fps
 * 60 fps
 * Hardware-dependent
 * Animation frame rate
 * 30 fps
 * 30 fps
 * 30 fps
 * 30 fps
 * 30 fps
 * 60 fps
 * User-determined
 * Jackal point defence gauntlets and Covenant portable shields lack the rippling energy effect on their surface.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * Water shaders do not render correctly, causing water to lack details such as ripples.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * No
 * Bump mapping is not present in the game at all.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * Materials such as the Pelican hull, assault rifle shroud, Master Chief's MJOLNIR Mk. V armour and others appear different, due to shader adjustments.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * The sun appears a different size in the sky, due to resolution differences.
 * Yes
 * Yes
 * No
 * No
 * Yes
 * Yes
 * Jacob Keyes' model is slightly modified, and he sports a different uniform on The Pillar of Autumn.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * The skybox used on The Truth and Reconciliation is lower resolution, and the Halo ring is much brighter.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * Assault on the Control Room lacks the fog above the map, leading to the black clifftops contrasting starkly against the sky.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * The game uses a higher-resolution version of the original HUD, with slight modifications to certain elements.
 * Yes
 * Yes
 * No
 * No
 * No
 * No
 * The game uses the Halo: CEA HUD, a completely overhauled version of the original HUD.
 * No
 * No
 * No
 * Yes
 * Yes
 * Yes
 * Yes
 * Yes
 * No
 * No
 * No
 * No
 * The game uses the Halo: CEA HUD, a completely overhauled version of the original HUD.
 * No
 * No
 * No
 * Yes
 * Yes
 * Yes
 * Yes
 * Yes
 * Yes

Level layout
!colspan=999|
 * On the map Hang 'em High, the small lips at the edges of the trench in the middle of the map have been removed.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * On the map Sidewinder, the one-way teleporter pair leading from each base to the far corner of the map have been replaced by two-way teleporters.
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes
 * No
 * Yes
 * Yes
 * Yes

Gameplay

 * Bloom on certain weapons such as the magnum has been increased, and is dependent on framerate.
 * No
 * No
 * No
 * No
 * Yes
 * Yes
 * }
 * Yes
 * }