Unlock All Customization Items (WORKING)

Latest working game version: 2025. 08. 16. 178512. 1-Release as of June 1, 2026

This is a maintained rebuild of the original mod for modern MCC builds. It replaces the game's unlockdb.xml with a copy where every item's state is set to unlocked. Built and tested against MCC build 2025. 08. 16. 178512. 1 (2058 items unlocked).

Easy Anti-Cheat must be OFF. Launch MCC and choose "Anti-Cheat Disabled (Mods and Limited Services)" at the launcher. With EAC on, the modified file is rejected.

Vortex (recommended)

Install the archive through Vortex. It deploys Data\UI\unlockdb.xml into your MCC install — works for both Steam and Microsoft Store / Xbox installs.

Manual

Back up your existing unlockdb.xml, then replace it:

• []Steam: ...\steamapps\common\Halo The Master Chief Collection\Data\UI\unlockdb.xml[/]

  []Xbox PC: ...\XboxGames\Halo- The Master Chief Collection\Content\data\ui\unlockdb.xml[/]

  Revert

  Restore your backup, or in Steam use "Verify integrity of game files" to redownload the stock file.

  • []Original mod and the unlockdb.xml technique: 0sedax (AKA Idlehands88) — "All Character Customizations Unlocked": nexusmods.com/halothemasterchiefcollection/mods/11[/]

    []The same approach is documented in the open-source Unlockdb-Unlocker: github.com/TermaciousTrickocity/Unlockdb-Unlocker (CC0)[/]

    This rebuild keeps 0sedax's mechanism and updates it for current game versions. All credit for the original discovery goes to them.

    • []Cosmetic only — it does not affect ranked/multiplayer progression while anti-cheat is enabled. But with EAC off, use in multiplayer is at your own risk; I'd just use this for single-player or custom games.[/]