Wedge-shaped V12s and curvy mid-engine classics, four to a race, through a city of steep hills, cable cars and painted Victorian houses. Fly over the crossings, wind down the zig-zag street, race across the red bridge in the morning fog and along the ocean at sunset.
Race alone against three computer drivers, or take a quick match online: whoever is looking for a race at the same moment joins you, and computer drivers fill the free seats after a few seconds.
This device seems to have no keyboard. The game needs one, or a game controller.
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| Arrow keys or W A S D | throttle, brake / reverse, steer |
| Space | handbrake: throw the car into a slide |
| C / R / Esc | camera / back onto the road / pause |
| F3 / F11 | frame rate / fullscreen |
| Game controller | left stick steers, right trigger accelerates, left trigger brakes, A handbrake, Y camera, Start pause |
| Downtown | the financial district at dusk, past the pyramid tower and the ferry building, with traffic |
| The Bridge | up through the forest, over the red bridge in the fog, round the headlands and back |
| The Coast | along the ocean beach, round the cliffs, under the bridge and along the bay at sunset |
| Hill Town | past the painted ladies, over steep crossings, down the zig-zag street and along the cable car line |
| Engine | none. No game engine and no 3D framework: the game draws with WebGL 2 directly (OpenGL ES 3.0 on the Raspberry Pi), in C |
| City | no map data and no modelling tool. Hills, streets, about 18,000 buildings, the bridge and the towers are generated in code when the game starts |
| Cars | six cars lofted from cross sections in code, ten paints |
| Sound | no recordings. The engines are synthesized live from their firing pulses, the music is composed while it plays |
| Online | a small server in C runs the computer drivers with the game's own physics; your car is driven on your machine and the others are synchronised 20 times a second over a WebSocket |
Everything is generated in your browser when the game starts; that takes a few seconds. Settings and best laps are kept in this browser. Licenses