The pay off is that if this works for you and if you like the genre, then this is a huge MMO game that's also cross-platform (though I note that RAM issues abound under Android too).
From the Store entry:
My Colony is a brand new space colonization simulation and strategy game from the maker of the hit simulation games My Planet, My Land, and My Business Empire! My Colony is not and never will be one of those "story" or "ville" type in app purchase nickel and dime games. The aim here is for a futuristic take on the classic sim city type game. I do not plan on adding multiplayer or enemies or things like that. I really want to keep this game in the casual sci-fi simulation category. Currently, My Colony is in a very early beta stage, in active development, and open and welcome to all players. These early builds are mainly meant for testing and feedback. So please try out the game and leave comments and feedback to help shape how this epic new simulation will unfold!
Here's the game in action:
You can grab My Colony UWP in the Store here. I've no idea how much the 'remove ads'/Premium IAP is, as the system crashed for me when I tried! If you really have trouble on the phone then try this on your Windows laptop or similar. Don't worry, you can share colony files around and load them up on a different device.
PS. To give you an idea of the scope of the My Colony ambitions, the game even has its own podcast!