Silence is free on GOG for the next ~1d 19h!
https://www.gog.com/en/game/silence
Nexus: The Jupiter Incident is free on GOG !
https://www.gog.com/en/game/nexus_the_jupiter_incident
POPGOES Arcade is free today on Steam !
https://store.steampowered.com/app/1986840/POPGOES_Arcade/