My original idea was to run mining while the game doesn't require the full use of the graphics card - i.e. rendering at 60fps requires 40%, bitcoin mining could

My original idea was to run mining while the game doesn't require the full use of the graphics card - i.e. rendering at 60fps requires 40%, bitcoin mining could use another 40%. If the scene is more taxing and requires 70% of the GPU, mining could drop down to 10%. I've got no idea how effective this would be, but it would be an interesting experiment for an indie game dev.