IANAL but I'm pretty sure generating something, even something creative, isn't enough for protection if it isn't novel and distinct. I'd assume none of their planets would be protected since there are 18 quintillion of them and most of them have never actually been rendered - but the process to generate planets of that style might be protectable.
this makes sense to me. If i custom design a planet for a game and unknowingly recreate a fringe planet from no man sky.. it really doesnt feel like copyright.
or if i create a completely different procedural generation method for planets and 99% of my planets differ from no mans sky but there is an identical overlap of some of my fringe planets and theirs, it again does not feel like copyright.
but if i take their method and tweak it a little bit so i also make a game with 18 quintillion planets of a somewhat different variety but am only able to do so because i am copying their methods without their consent.. that feels much more like copyright. even if none of my planets are an identical match to a single one of theirs
