Most of your Halo: The Master Chief Collection save data will automatically transfer between Xbox, Xbox app for Windows PC, and Steam versions. There are a few exceptions:
- Mid-mission checkpoints in the campaign and in playlists do not transfer between the Xbox, Xbox app for Windows PC, and Steam versions.
- Completing missions and playlists on one platform will result in the missions and playlists being marked as complete on all platforms.
- In-progress missions and playlists do not transfer between Steam and Xbox versions.
- Customization and Player ID unlocks are available across all platforms as long as the same Xbox network profile is signed-in.
For a full visual breakdown of what data is retained and when, check the chart below.
Data Retention Information [text version]
Mission Completion (Campaign)
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Progress is retained on the Xbox Live Profile across all three platforms.
Mid-Mission Checkpoints (Campaign)
- Data is not retained Xbox console, Xbox app for Windows PC, and Steam.
- Mid-Mission saves are not retained between Xbox consoles and the Xbox app for Windows PC.
- Steam is self-contained and will not interact with Xbox consoles or the Xbox app for Windows PC.
Partial Playlist Completion
- Data is not retained across Xbox console and Xbox app for Windows PC.
- Playlists with partial mission progress are not resented between Steam and other platforms. (e.g. 1/3 Missions Completed)
Playlist Completion
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Playlists with all missions completed are visible through the Playlist menu with all missions completed.
Mid-Mission Checkpoints (Playlists)
- Data is not retained across Xbox console and Xbox app for Windows PC.
- Mid-Mission saves are not retained between Xbox consoles and the Xbox app for Windows PC. Starting a mission on one will trigger an error message that your save on the other will be lost.
- Steam is self-contained and will not interact with Xbox consoles or the Xbox app for Windows PC.
Leaderboards
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Leaderboards are shared across all platforms. Your entry is filed under the Xbox network profile.
Career Stats
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Career Stats are shared across all platforms. Your entry is filed under the Xbox network profile.
Medals Chest
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- The Medals Chest is shared across all platforms. Your entry is filed under the Xbox network profile.
Achievements
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Achievements are shared across Xbox consoles and the Xbox app on Windows PC. Signing into the Steam version will automatically grant you Steam Achievements matching your Xbox network profile's progress.
Account Level/Rank (Progression)
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Account level and Rank are shared across all platforms. Your entry is filed under the Xbox network profile.
Reach Customization Unlocks
- Data is retained across Xbox console and Xbox app for Windows PC.
- These are retained with the Xbox network profile but may need to be re-equipped on new platforms.
PlayerID Unlocks
- Data is retained across Xbox console and Xbox app for Windows PC.
- These are retained with the Xbox network profile but may need to be re-equipped on new platforms.
Challenges
- Data is retained across Xbox console, Xbox app for Windows PC, and Steam.
- Progress and completion is maintained with the Xbox network profile.