A few months ago I've found this browser-based game which ditches the whole 3D game ui directly and allows you to do all your spreadsheet planning right there. https://prosperousuniverse.com/
My favourites were Ogame [1] and Galaxywars [2] which were both unplayable after a few months because you were just raided every day without a chance to bounce back and balancing in general was horrible. Still good memories though because the game continued when you were not online. You sent an attack that took 8 hours on way so after 8 Hours you know if you succeeded and after 16 hours had your loot and ships back (or not)
[1] https://en.wikipedia.org/wiki/OGame [2] https://de.wikipedia.org/wiki/Galaxywars (german only sadly)