A Game About Capybaras Delivering Food is a browser game by Leonardo Santos, built in about fifteen days in April 2026 with Claude Code and Three.js, and ranked first of 945 entries at Cursor Vibe Jam 2026.
You play a capybara on a scooter: a phone brings an order, you ride to the shop and carry the items to an address with the shopping stacked in a tower behind you. The jam, run by @levelsio and sponsored by Cursor, requires at least 90 per cent of the code to be written by AI; Santos says Claude Code wrote all of his. After almost nine years as an iOS engineer, it was his first game.
A percentage instead of physics
Of the numbers Santos published, the one to hold onto is a percentage. Lean into a corner and the pile bends into an arch; past a threshold, things fall. He tuned the stack away from physics on purpose: past the tipping point there is a percentage chance of a drop rather than a certainty, because a certain drop was less fun to ride. More items pay more and fall more easily. His own film's tips box puts the bargain plainly: "Deliver all items quickly to boost your bonus. Streaks of fast deliveries pay even more."
The Inconvenience Store
The shop is called the Inconvenience Store. Santos put it on the highest mountain on the map under a column of yellow light, then made it hard to leave: the floor slides, a trolley appears at random and you have 45 seconds to fill the list. He writes that even after the jam the judges still do not like his store.
The map he drew himself
A generated map, drawn by Grok and turned into 3D by Tripo3D, fell apart when zoomed in, so Santos asked Claude Code for an editor with terrain brushes and a road tool that lays asphalt along a curve between clicked points. He forgot to ask for undo until the second week. With it he laid out a city with a red bridge after the Golden Gate and a hillside sign reading CAPYWOOD, where every tree is two flat planes crossed in an X.
Santos will not take the game to Steam. He says it is good for five to ten minutes, and the jam's own counter puts the median playtime at four.
Made with: Claude Code for the code, Suno for music, ElevenLabs for sound effects and Tripo3D for the 3D rigging, as the game's own title screen credits; Santos also names Three.js, Grok and an OpenAI image model for textures.
Sources
- A Game About Capybaras Delivering Food live workProject Page (opens in a new tab)
- Leonardo Santos's detailed making-ofCreator Post (opens in a new tab)
- Leonardo Santos's Vibe Jam submission postCreator Post (opens in a new tab)
- Official Cursor Vibe Jam 2026 results and entryOther (opens in a new tab)
- Leonardo Santos's own 30 April post of the finished build, the cozy afternoon co-op run registered here as the work's filmCreator Post (opens in a new tab)
