Under the tab, click Change in the Virtual Memory section. Uncheck "Automatically manage paging file size."
Optimizing your settings specifically for RTS games.
Ensure your Nvidia or AMD drivers are current. Memory management for shaders is handled by the GPU; outdated drivers can cause "VRAM" overflows that the game reports as general "Out of Memory" errors. 🖱️ Troubleshooting "Out of Memory" on Launch If you can't even get to the main menu: cossacks+3+out+of+memory+work
Lowering the strain on the engine can prevent memory leaks from reaching a critical point. Adjust Video Settings
Set a (Initial: 4096MB, Maximum: 8192MB or higher depending on your disk space). 3. Run in Compatibility Mode Under the tab, click Change in the Virtual Memory section
Point the tool to cossacks.exe in your installation folder.
Reduce from "Very High" to "High" or "Medium." Anti-Aliasing: Turn this off or set it to 2x. Memory management for shaders is handled by the
If your physical RAM is full, Windows uses your hard drive as "virtual memory." If this file is too small, Cossacks 3 will crash. Go to > Advanced > Performance Settings .
Cossacks 3 is a 32-bit application, meaning it is traditionally limited to using 2GB of RAM. The "Out of Memory" error often triggers when the game hits this ceiling. Use a utility like "Large Address Aware" (LAA).
High-resolution textures and complex shadows are the biggest memory hogs.