A puzzle game around challenging networking problems build by the Science Museum of UK, no ads, no tracking, just puzzle fun with a great soundtrack.
Google Play: https://play.google.com/store/apps/details?id=com.lojugames.games.transmission
Apple Store: https://apps.apple.com/app/id917778256
Now it's your turn to either try these or add more in this thread that you like and that I missed.
Mechwarrior online (PC) - Multiplayer mech fighting simulation.
Gwent (PC Mobile) - pretty neat cardgame from the witcher 3.
chaos.social – a Fediverse instance for & by the Chaos community