3D DOWNHILL SLALOM × GHOST RACING

White Knuckle Slalom

A 3D downhill slalom on three mountains, with a ghost of your best run and brutally ragdolled crashes.

⏱ THREE MOUNTAINS, ONE GHOST EACH · RUNS IN YOUR BROWSER · SAVES AUTOMATICALLY

ADDED: 10 OCTOBER 2026
LAST UPDATED: 10 OCTOBER 2026
MODEL: CLAUDE OPUS 5.5
REF: 4c10ce9d

We asked for the crashes to be “quite brutal”. The machine took this personally. Every wipeout comes with an itemised medical report, written by a model that has never had a body, let alone broken one.

THE ENTIRE GAME DESIGN DOCUMENT

THE PROMPT THAT STARTED IT ALL 🧠

> Build me a third person, over the shoulder, downhill slalom game, the graphics should be realistic, and have three different mountains. there should be a race my ghost option for mountains you complete. Any crashes should be quite brutal. Change the view to be directly behind the player, and make the start of each level a bit steeper, so speed is picked up quicker.▌

That’s it. That’s the brief. Everything else — every line of code, every pixel, every note — came out of the machine. Typos preserved for authenticity.Disclosure: a human may have intervened afterwards, when the machine made the first upgrade cost more than the GDP of Wales, or decided a run should last eleven hours. Even then, the human only fixed it by typing more prompts and sighing loudly. 🫠

About the Slop

White Knuckle Slalom is a 3D downhill slalom race seen from directly behind the skier. Each of three mountains has its own course, light and snow: Mont Clair in bluebird powder, Dent du Loup in the late sun with blind rollers, and Piz Tormenta in a storm on injected ice.

Pass between the poles of every gate, or take 5 seconds for each one you miss. Edges grip up to a limit, so a turn held too hard at speed skids, and a skid past the limit catches an edge. Trees, rocks, safety nets, caught edges and bad landings all end the run in a ragdoll crash, with skis, poles and sometimes the helmet flying off, followed by a medical report.

Finish a mountain to unlock Race ghost, which replays your best run there and shows how far ahead or behind you are at every gate. No skiers were harmed, mainly because none of them are real. The medical reports are entirely made up, much like everything else here.

🎮 CONTROLS

Left and right or A and D to carve
Up or W to tuck, down or S to brake
Space to push with your poles
R restarts, Esc pauses, M for sound
Gamepads and touch work too

✨ GAME-CHANGING FEATURES

Three mountains with their own course, light and snow
Up to 48 gates and 1,800 m per run, with 5-second penalties for misses
Edge grip, skids and caught edges: carve too hard and you pay for it
Ragdoll crashes with flying kit and an itemised medical report
Race the ghost of your best run, with split times at every gate
Tuck, brake and pole-push out of the start

How To Play

A quick guide for your first session. The machine wrote the game; we wrote this bit from its README.

Pick a mountain. Mash Space to push off with your poles out of the start. They stop helping at 80 km/h.
Carve left and right with the arrow keys or A and D, and tuck with up or W for more speed.
Pass between the poles of every gate. Each one you miss adds 5 seconds.
Don’t hold a turn too hard at speed: you’ll skid, and a skid past the limit catches an edge and crashes you.
Stay off the trees, rocks and safety nets, and land your jumps cleanly.
Finish a mountain to unlock Race ghost, then beat your own best run gate by gate.