Square One City is a persistent, browser-based 3D city-building game. Players explore, build, and compete inside a shared city — and real businesses can buy a physical presence inside that world: building facades, digital sign spinners, and permanent commemorative squares that thousands of players walk past.
Square One City is an independently built, browser-playable 3D city-building game (no download required — it runs directly at squareone.city). Players sign in, place and grow buildings, earn in-platform credit through daily play, and build out a shared virtual city over time. It's a game first — and the ad inventory built into that game world is what makes it a real, ongoing advertising product for businesses, not a one-off banner buy.
Where we are today: the game is live and in active build-out — core city-building, accounts, and the ad-purchase flow described below are being finished now, with real transactions processed securely through Stripe. This site describes the finished product we're bringing to launch.
Three ways for a business to show up inside the city, priced for different budgets and commitment levels.
Your logo or brand art on a building facade inside the city — seen by every player who walks or drives past it. Priced by location and visibility inside the map.
A lower-cost, day-rate rental — an animated sign-spinner placement for short campaigns, promotions, or testing the platform before committing to a permanent spot.
A one-time purchase for a permanently owned, named square in the city — a lasting placement rather than a recurring rental, for brands or individuals who want a fixed presence.
Questions about advertising space, partnerships, or the game itself — reach out directly.
Short-form summary of our terms and privacy practices. A full Terms of Service and Privacy Policy are published in the game itself before any account creation or purchase.