Geotastic is definitely a great alternative! If I could add another it would be FreeGuessr.com. You can turn off street names, it doesn't have Ads and you can play No Move or Blink Mode directly from the game.

Amazing news! It's great to see GeoGuessr coming to Steam! 🥰 This should make playing on Steam Deck much smoother. I just hope there's a free option (even with ads). On the web, most people have switched to free alternatives like FreeGuessr. If they go with a monthly subscription on Steam, I’m not sure it will work.

Yeah, considering that the whole game is dependent on Google Maps, they can end it any time. I just hope GeoGuessr has a good partnership with them. I saw somewhere that they pay millions per year for the maps!