A much more mobile-friendly 4X game is Polytopia. Doesn't look like it's on F-Droid but the apk is available: https://www.apkmirror.com/apk/midjiwan-ab/the-battle-of-polytopia/
A much more mobile-friendly 4X game is Polytopia. Doesn't look like it's on F-Droid but the apk is available: https://www.apkmirror.com/apk/midjiwan-ab/the-battle-of-polytopia/
Gravity (2013)?