This example is complicated by games also being art and how it can be hard to separate both (even when it's just graphics and audio that you keep on a more clos

This example is complicated by games also being art and how it can be hard to separate both (even when it's just graphics and audio that you keep on a more closed license). See how Western games are still overwhelmingly closed source, despite the now known rewards : like Civilization 4 (2005) opening most (but not all) of its C++ (dll) source code, as well as easy to mod XML & Python scripts resulting in a still alive modding scene even today, 18 years later, and after 2.5 (much more restrictive) sequels !