Select your C: drive, choose , and set the Initial and Maximum size to at least 8192 MB (8GB) or 16384 MB (16GB). Click Set and restart your computer. 3. Clear the Shader Cache
To resolve the error in Cossacks 3 , the most effective solution is manually increasing your Windows Virtual Memory (Pagefile) , as the game's engine often exceeds the default system-managed limits during long matches or high-population battles. Core Fix: Manually Increase Virtual Memory cossacks+3+out+of+memory+work
Run the tool and select the cossacks.exe file in your game folder. Select your C: drive, choose , and set
Even though Cossacks 3 claims to be large address aware, the flag may not be set in all executable versions. Force it manually: Select your C: drive