Serious Sam 3 Cannot - Set Display Mode Top ^hot^

Even though you have DirectX 12, Serious Sam 3 needs legacy DirectX 9 files.

If you are trying to launch and are immediately greeted by the error message "Cannot set display mode" followed by the game crashing or failing to start, you are not alone. This is a legacy issue common with older shooters transitioning to modern hardware. serious sam 3 cannot set display mode top