I'm talking an imaginary sequel which captures why you like the game, but improves on it with the latest in game design. So an actual spiritual successor. I'll start. I think hexes really make sense. The squares were good, but hexes feel natural for movement. I'd also like the unstacked cities from Civ 6 as a concept (never played 6 though. Sounds like it didn't turn out super well.) Alpha Centauri was leaning that way with just how much you could do with terraforming. I think it would make sense for that to extend all the way, and it could be cool if done right. I'd personally make the movement of the planet's minions mindworms/locusts of Chiron/etc more formulaic and predictable. Like they beeline to the most polluting thing first. Like mindworms wouldn't attack clean scouts, but they would beeline toward the massive city that's generating all the pollution. Also, I think it would be fun if the story was changed up too. If you've ever read Children of Time, that would be super neat. Basically, humanity seeded a planet with a virus to speed up evolution. In AC, instead what would happen is one of the alien life forms would gradually become more intelligent through the course of the game until it started building its own civilization as an actual player near the end when it schisms from the planet's main consciousness and becomes as corrupt as the humans that birthed it. What would you change/add?