Strategy games that take all your brain power?

[clivec659]

I'm looking for one of those sweet games that just, you know, engulf your entire thought process and immerse you completely into micro/macromanaging everything and taking in all the data. Stellaris used to be that for me, but 8K Hours later and i can play the game with my eyes closed! Do you fellas have any suggestions for something that can take away my sense of time for a few hours?