Atmocity is an awesome simulation and construction game by Correcture Games AB. It puts you in charge of building sprawling cities that defy gravity. Test your skills as mayor in the campaign mode, where you have to achieve set objectives, or let your creativity go wild in the free-roaming mode.
The game features more than 100 different building types, ranging from lower class to upper class residences, from amusement parks to universities. The game includes a Campaign mode with 25 levels of differing difficulty and city sizes, and a retro mode for those with a fear of heights. If you get stuck in the game, check out the video walkthrough and gameplay for the game.