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3D.CITY

Lay out roads and grow a detailed 3D city in an isometric browser builder. It runs on an external host; gameplay and terms follow that page.

Play on external site ↗

Opens on: Official 3D.CITY browser demo. New tab; host requirements apply.

MouseKeyboard
3D.CITY — Original Denny Games title-card artwork for 3D.CITY; not an official game screenshot.

How to play

  1. Follow the goal and instructions shown in the game.
  2. A free MIT-licensed 3D city-building demo that uses WebGL 2 or WebGPU. Its project roadmap still lists save/load fixes.
  3. Use the external host's game menu for detailed rules and any restart or save options.

Make your move

  • Use the host's in-game tutorial and current mouse/keyboard instructions; save and load behavior is still listed as work in progress.
  • Check the host's Help or Controls guide for every key and touch action.
  • Denny Games has not verified a complete external game session or device compatibility.

A small head start

  • Read the host's help and controls before your first move.
  • Read the host's controls and rules before starting a longer run.

Compatibility notes

The README describes WebGL 2/WebGPU city building and still lists save/load fixes on its roadmap. In one desktop browser navigation the city and menu appeared after about 28.3 MB of transferred resources; actual transfer varies by cache and browser. The page returned HTTP 200 on 2026-10-16. No complete city-building session, save flow or physical device was tested.

Denny Games has not verified this external build's gameplay, browser compatibility, controls or save behavior. Check the host's current requirements.

Play style: Check host controls. This game runs on an independent host or browser build. Denny Games does not manage its account, session or saves; see the notes above for how this build handles them.

Compatibility

Credits & source

lo-th and contributors · The project describes 3D.CITY as an open-source browser city builder and publishes an MIT license. Third-party libraries retain their own terms; Denny Games links to the project and copies no game files or artwork.. · License details · Source repository and license · External browser host: Official 3D.CITY browser demo

Updated: 2026-10-16. Free to play. Pages may contain disclosed affiliate links; Google ads are inactive.

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