GOG is surely quite curated, but for older games they usually don't have many objections. There is also itch.io where there is almost no curation at all. As fo

GOG is surely quite curated, but for older games they usually don't have many objections. There is also itch.io where there is almost no curation at all. As for preserving in other ways - I agree, you can't expect any specific store to be around in the future. Internet Archive also work on preserving old games.