Atomic Heart Patch Notes — April 23, 2026
Aggregated from Steam, cross-tracked with Battle.net coverage on GamePatchNote.
Patch 1.16.3.0 for Atomic Heart is rolled out and now available on Steam. See the list of changes for this update below:
Blood on Crystal DLC#4 changes:
Fixed missing music in the area with the polymorph pianist
Fixed an issue where brightness was too high in some areas in Photo Mode
Fixed some quest markers
Fixed various bugs when loading saves
Improved the behavior of the RACCOON miniboss
Crash fixes
Other minor fixes
RECOMMENDATIONS FOR SOLVING SOME ISSUES
We cannot guarantee or support the game if the Atomic Heart game client has been modified by any third-party software. If this happens, you should uninstall this software and reinstall the game.
If you encounter issues on Steam, first check the integrity of the game files as described here. This may solve the issues:
https://help.steampowered.com/en/faqs/view/0C48-FCBD-DA71-93EB
Also, if you encounter any issues while playing, you can direct them here:
https://forms.clickup.com/2651050/f/2gwxa-19963/9BKY6NR4J0FZBLMS02
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