I had fun with Mini Metro for a while, but in the long run it's a really frustrating game, because it always ends in failure - you start with a few stations and a few lines, but the game keeps throwing more and more passengers at you until you end up frantically trying to plug the holes in your network or "rewiring" it on the spot, and sooner or later everything inevitably blows up in your face. Plus of course it's wildly unrealistic with the way you are able to just delete your existing "tracks" and instantly construct completely new connections between your stations out of thin air, or just "teleport" trains/carriages from one line to another.