Most common issues point 2
Under the “manage 3d settings” tab in the nvidia control panel, you should be able to navigate to your game’s .exe and specify which GPU to use from there.
Train Fever
Official Website (archived)
Most common issues point 2
Under the “manage 3d settings” tab in the nvidia control panel, you should be able to navigate to your game’s .exe and specify which GPU to use from there.