Turn based is excellent because always I’m mid-turn when the answer comes so I alt-tab out and keep going.
My steam shows some ridiculous number of hours in game because it’s always on, nearly 24/7, in a window on my monitor
Then if you like it you can work your way backwards
If you like a more futuristic setting then Endless space 2. Or civilisation beyond earth is really fun to colonise another planet and research futuristic technology and alien biology.
If you like puzzle games with no time pressure SpaceChem.
These are my favs