TheoTown is a city-building game that allows players to create and manage their own simulated city or city state. As the mayor of each city, players can establish skylines and structures that simulate various statistics, such as transportation networks, emergency events, and world wonders. The game also features user-made plugins that allow players to add missing elements to their cities.

To build a successful city in TheoTown, players must declare zones, build roads, and supply energy and water. They can also connect their cities to other cities in the region, build airports and manage airplanes, construct railway networks, and build subways and trams. Additionally, players can build military facilities, collect taxes to finance their cities, and construct famous landmarks like the Eiffel Tower and Statue of Liberty.

The game offers a realistic traffic simulation, allowing players to solve traffic issues and control operational cars to extinguish fires, solve crimes, and prevent epidemics. Players can also build parks and schools to improve the living standards of their inhabitants, and control game speed to manage their cities more efficiently. The game features a built-in Plugin Store that allows players to expand their game's content with hundreds of plugins, and can be played offline without an internet connection.

Players can join the TheoTown community on Discord, Facebook, and Instagram to discuss various suggestions and topics on the game. The game is free-to-play and does not require additional, purchasable items to play.

Overall, TheoTown is a comprehensive city-building game that offers a wide range of features and customization options for players to create and manage their own simulated cities.