You need to make some reward/progress system in the games. Like Cook Serve Delicious 2 - that game you get some good scores and unlock new restaurants. Well, it's mostly experience points so that even if you do badly you still make some small progress towards unlocks. So you can make a map with lots of lands, and you get a good score to get experience towards unlocking the new lands. New land = new background + an additional tool mixed in which makes it a bit harder. We need some feelings of reward for...

I don't even own the game .                                                                                                          ...