Publishers are absolutely terrified "preserved video games would be used for recreational purposes," so the US copyright office has struck down a major effort for game preservation
All the best games are cool about providing software resources to players, mod abilities, self-hosting, so on. It's kind of like the Steam license thing. I love Steam but there's no way I'm starting Helldivers 2 or Destiny 2 up in ten years to play nostalgia. But Shattered Pixel Dungeon? Deep Rock Galactic? Valheim? Minecraft. I'll still be rocking those.