AC7 "Fatal Error - Game will now close" on startup : r/acecombat
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Missing or corrupted pak files (common after patching or mods). ace combat 7 fatal error
If you use mods like "Skies Unknown Graphics Mod" or specific aircraft skins, these are known to brick the game after official updates:
The game may lack the necessary administrative rights to access system files. Step-by-Step Fixes How to FIX ACE COMBAT 7: SKIES UNKNOWN Crashing AC7 "Fatal Error - Game will now close"
: Completely remove the contents of your ~mods directory located within your Steam game directory ( ...\Steam\steamapps\common\ACE COMBAT 7\Game\Content\Paks\~mods ).
Turn off , Discord Overlay , and MSI Afterburner/RivaTuner . Step-by-Step Fixes How to FIX ACE COMBAT 7:
Right-click on and select Properties . Navigate to the Installed Files tab. Click Verify integrity of game files . Wait for the process to complete, then relaunch the game. 2. Update or Clean Install Graphics Drivers
Open the drop-down menu and change the default format to or 16-bit, 48000 Hz . Click Apply , then OK , and launch the game. 2. Disable Graphics Card Overclocks
Overlays inject code directly into the game's rendering pipeline, which frequently triggers a "Fatal Error" exception. Right-click Ace Combat 7 in Steam →right arrow Properties →right arrow General →right arrow Toggle off Enable the Steam Overlay while in-game .