Can you name some PC games with actually "complex gameplay"? Most only look complex until you learn that you can ignore 95% of the options they give when it comes to overcoming the trivial challenges they throw your way, and thus they all boil down to incredibly simple brain dead games where the only difficulty is the initial learning curve of figuring out all the shit you can ignore.
Factorio, DCS World, Underrail, Silent Hunter (pick any), SWAT 4
SWAT 4 is a great example of what I was talking about. Absolutely every option the game gives you can be ignored in favor of going solo with a pepper ball gun. It is an extremely brain dead simple game (simpler than many "less complex" FPS games) when you do so, and playing it any other way is just for larping.
Haven't played any of the others but I feel I can comment by way of comparison with the classics.
Is Underrail any more complex than Fallout? If not then it's just a matter of remembering how to navigate dialogue trees and matching inventory items and stats to environmental interaction affordances. Really an obscurantist take on pegs and holes (popular game for infants). Entertaining as a "create your own story" game, but complex it is not.
For Factorio, I will assume it is like The Settlers (correct me if I am wrong), which I have played, combined with a manual "crafting" game (which is what puts me off playing Factorio -- I can't stand "crafting"). Basically these are tile matching games. 2 blue tiles and 3 red tiles give you 1 yellow tile. 1 yellow tile and 2 purple tiles give you 1 black tile and so on and so forth. Of course in these games the tiles (resources) also have to be transported to special tile matching sites, which is a matter of connecting the wires. This is actually less complex and simpler to accomplish than tile matching games with e.g. gravity and chain reaction mechanisms. Is there some additional complexity I have missed here?
Ironically the guy who made Factorio was (and still is?) an OpenTTD modder, and OpenTTD does have
potential complexity beyond tile matching and wiring due to the market simulation it incorporates. I say
potential, because it also suffers PC game syndrome -- you can completely circumvent 99% of the game while still meeting all the objectives it sets out for you by setting up airports and aircraft routes between them, which are by far the most in-game money efficient, and also the easiest to set up. IIRC there are some settings in OpenTTD that can be used to "fix" that, but it was unfixable in the 1994 original. Anyway, no one really takes OpenTTD seriously as a game, rather it's enjoyed as a model railroad simulator.
Silent Hunter and DCS are simulations, which may or may not result in complex games. With DCS which modules are you referring to? Also what do you feel is actually complicated about the way you play these games? I assume you believe these are more complex than console native games in the same genre, otherwise you wouldn't be mentioning them. Have you played any of the more well regarded console sci-fi simulation or robot programming games like Carnage Heart, Steel Battalion, Chrome Hounds or Verdict Day (esp. UNAC battles)? How would you compare them?