Selling or licensing IP should be a hard requirement for maintaining ownership of it. That doesn’t require compelling anyone to do anything; it’s merely withdrawing privilege of IP ownership from someone not using it for its intended purpose, which is, to quote the US Constitution, “[t]o promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries.”
You would think licenses for a game hardly anyone buys anymore would be incredibly cheap to renew. OTOH I know the music industry is run by greedy fucks who make Ubisoft look like a charity, so I don’t expect reasonable license terms to be offered.
Not just games, but any kind of software. That’s part of why programmers developing tools for themselves avoid writing interactive programs if they can, and they especially avoid graphical interfaces.