A city appears as a blank map. Stations spawn as geometric shapes. Passengers appear and wait. The job is to draw subway lines between the stations and keep every passenger moving before the pressure builds past what the network can handle.

Mini Metro is a minimalist strategy game about designing a subway network under the pressure of a growing city. The player draws lines between stations on a stylised map, assigns trains to routes and manages a limited weekly budget of carriages, lines and tunnels. New stations appear over time, each demanding connection to the network, and passenger volume increases as the city grows. The game ends when any one station is overwhelmed — too many passengers waiting with nowhere to go. Twenty real cities are represented as maps, each with distinct geography that shapes optimal network design: London's sprawling layout, Tokyo's density, Paris's river division. Three modes provide different pressure levels: Normal ends on overflow, Extreme increases spawn rates, and Endless removes the failure condition entirely. A daily challenge and weekly leaderboard offer structured competitive play. The entire game is presented as a moving transit map poster, with no text on-screen during play.

Key Features: • Draw subway lines between stations and manage trains and carriages under growing passenger pressure • 20 real-world cities each with distinct geography shaping optimal network design • Three modes: Normal ends on station overflow, Extreme increases pressure, Endless removes failure • Weekly upgrades choose between extra carriages, new lines and tunnel connections • Daily challenge and weekly leaderboard presented as an animated transit map poster with no on-screen text