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I built a full 3D model of Toronto drawn as a living comic book, in bold ink lines, pastel cel shading and halftone dots, and turned it into bird GTA simulator (pun intended). The objective is to play the role of a robotic pigeon and go on various missions, or just free fly and cause havoc - while chatting with your handler. The scope of this project grew to be... pretty massive. The whole playable area is 630 square km (that's about 9x more than the GTA5 map), fully 3D - you can fly everywhere, and walk every street. Here are some stats from the project, and a video of me just messing around. - 438,819 real buildings, with heights from the City’s 3D data - About 5,700 km of real streets, with lanes, sidewalks and speed limits - No external assets of any kind - Procedural dialogue: handler and pedestrians react based on who they are, where they are and what just happened - On-device neural voices, synthesized live in the browser - 3,237 named places: parks, stations, squares and landmarks, with spoken facts (you just might learn something) - Real-time air traffic: the actual planes over Toronto, live from ADSB - A 4.7-million-point terrain grid, Lake Ontario shoreline included - A living city: traffic, pedestrians, flocks, boats, weather, day/night, encampments, protest marches, buskers, rush-hour traffic, Waymos and more - Packed with random missions, and hidden easter eggs - About 165,000 lines of JavaScript, no game engine - Built in 7 days by up to 10 parallel AI workstreams - 35,218 Claude model calls and 41,495 tool calls 39M output tokens and 11.6B tokens of context processed If you live in Toronto, fly to your neighborhood (Fast Deploy via map), and I'd love your feedback so I can improve realism. Given the massive scope of the map, I didn't experience 99% of places in the game personally.