What does RMS think of video games?

Unlockable content is restricted to players who have made certain progress in-game. This is not free as in freedom. If a free, open-source game features unlockable content, is it unethical? Is it infringing on muh freedom?

>>36
There is no way to do occlusion outside of graphics pipeline. In complex scenes, with global illumination, removal of on object (which for example occludes sunlight), even on the opposite side of map, can radically change scene lighting.