: If installing on Steam Deck, use Proton GE and add the setup.exe as a non-Steam game to run the installer.
: For some Atomic Heart builds, you may need to press "1" in a command prompt window after installation to apply system changes, then reboot and press F7 in the loading menu to disable Driver Signature Enforcement (DSE) before playing. Common Fixes & Optimization Atomic Heart -- fitgirl-repacks.site --.part15.rar
For the most up-to-date troubleshooting and to ensure you have the correct files, visit the official FitGirl Repacks site or consult the community on the FitGirl Repack Reddit . : If installing on Steam Deck, use Proton
: If VSync is forced on, navigate to %LOCALAPPDATA%\AtomicHeart\Saved\Config\WindowsNoEditor , open GameUserSettings.ini , and change bUseVSync from true to false . : If VSync is forced on, navigate to
: Allow the installer to install missing DirectX or Visual C++ components if prompted.
Before running the setup, look for a file named Verify BIN files before installation.bat in the extracted folder. Run it to ensure your download isn't corrupted. Locate and run setup.exe .