If nothing else, Workers & Resources Colon Soviet Republic will give anyone an appreciation of the incredible complexity and difficulty of building and maintaining a city. On another day I might call it the first ever city building game.
Even a Settlers or Factorio cannot match its extreme focus on logistical simulation. It isn't realism for its own sake (look no further than the automated vehicles and the ludicrous citizen behaviour to refute that), but a fundamentally different interpretation of what city building means. It's about co-ordinating all your pieces so they'll be in the right place to support each other, and how the whole is all that matters, but that whole will fail if you don't organise its parts. It is… a lot. It's too much at times. But if you have those times, it will occupy them like nothing else.
