Chapter
01
São Paulo Is Already a Game
The starting point was simple: São Paulo already behaves like a game. Potholes, trash bags, speed bumps, puddles, open drains, dogs and people become a familiar obstacle system — translated into jump, dodge and timing mechanics.
02 From Prompt to Play
Chapter
02
From Prompt to Play
AI was not a finishing tool; it was the production pipeline. ChatGPT / OpenAI supported concepting, art direction, asset development, animation logic, gameplay systems, HTML5 / JavaScript code, iteration, testing and QA. The final build runs on GitHub Pages with Google Analytics 4.
03 Building São Paulo with AI
Chapter
03
Building São Paulo with AI
The city was assembled as a living system rather than a backdrop. Characters, street furniture, traffic, the Tietê River, capybaras, birds and small urban details were created, selected and refined individually, then combined into a world that feels unmistakably São Paulo.
04 From Prompt to Playable
Chapter
04
From Prompt to Playable
The final proof of the experiment is not a mockup. It is the game itself: a playable mobile browser experience built end-to-end with AI and refined through repeated creative direction, coding and QA.
