There are four #Steam curators that specialize in #FreeSoftware #games.
https://store.steampowered.com/curator/25436776-FLOSS-Games/
https://store.steampowered.com/curator/6942691-License/
https://store.steampowered.com/curator/9035867-Open-Source-Community
https://store.steampowered.com/curator/9891813-Open-Source-Curator/