Arknights: Endfield

Set in a universe of anime style characters who have spaceships but still use swords and spears, this free to play single player game features some nice graphics, decent voice acting and a click fest of combat that rewards timing.

Not only do you have to balance your team of four from a roster of operators (most of whom are possibly teenage girls) who will each individually require leveling, gearing, leveling the gear, and such - you also have to get lucky to recruit them from the gachapon style lucky draw that you earn every so often.

Base building is also a pretty big component of this game (which caught me by surprise). Sure, you can hit minerals and gather bushes to craft stuff. But you can also setup auto mining rigs, processing plants, fabricator factories, conveyor belts between said parts to move materials around and electrical generators and have to run electrical cables to each of these for them to activate. Cable not long enough? Build a relay to keep it going! 

You can easily spend sessions not fighting at all but just harvesting, expanding and such. Oh, and you also build outposts that you can assign one of your team to manage, that can then trade and grow on its own too. There's also a stock market where you can buy goods and hope that you can sell for higher, because this "single player" game still takes into consideration what other players are doing. And if that isn't enough you can then fix up and build out your space ship. :O

Yes, there's A LOT going on here with tutorials galore in the form of simulations, including the base building part. Cool game but ultimately just too much for me, and you can almost taste the grinding as you need loads of things to level up your people, build your base and the like.