Here is a grand strategy game series that I dabbled in some years ago. It takes a bit of time to get a sense of what you are doing (me, several years lol) as there is so much micro-management I didn't know where to start.
With Ascension, the Nobunaga series finally introduced a gameplay mechanism that is similar to the Romance of the Three Kingdom games -- I get to play as an humble office to manage a fief instead of a daimyo working towards taking over/ unifying the entire country. And instead of following some historical events, I can choose to follow my own path: i.e. my office had already defected a few times to build up a stronger army.
This is one long game (at the moment it's one invasion after another while learning about Japanese history) ... so will see where it will take me ...
Besides, am having a game drought (ironically someone gave me a PS4 slim!!!) and there isn't much out there worth playing right now for me. The other night I finally finished Summon Night 6: Lost Borders... the turn-based gameplay was interesting to begin with then it just kinda fizzled out ... the game itself is not challenging (though the final boss battle did take quite long). Think it was released just for fans (and I am not one of them). So I sold that -- as well as the Super Robot Wars Z3 cos it's in Japanese and I now have two more robot wars games that are in English (am not playing them right now). Psycho-Pass Mandatory Happiness also seems to appeal only to fans, as is Persona 4 Dancing All Night.
In the meantime I just jump between old games: Atelier Escha & Logy: Alchemists of the Dusk Sky I'm still playing but it's just not very engaging (though it is beautifully rendered). I'm just not very good at alchemy lol. Then there are the games I already finished: the two Zero Escape titles, the various Final Fantasy games, Uncharted Fight for Fortune ... which I kept going back to.
But I really need to find something new -- and good ....