# Odd & Out Game

> Free co-op alien adventure for the browser · 2026 · Games, WebGPU, Experiments

Canonical page: https://andersonmancini.dev/projects/odd-and-out-game

**Odd & Out** is a free **3D adventure for the browser**, inspired by the 1991 classic *ToeJam & Earl*. Two aliens — **Odd**, the mushroom, and **Out** — crash-landed on Earth and broke their ship. Explore **floating islands that are new every game**, ride the elevators between levels, dodge weird creatures and find every missing ship part, on **desktop and mobile**.

Play **solo**, **online with a friend** through an invite link, or in **split screen** on the same computer, with keyboard, gamepad or touch. The terrain is generated from a seed — lakes you can swim in, rivers, rope and stone bridges, slippery ice — and it is full of gags: trampoline mushrooms, banana peels, a human cannon and a cow taken by a flying saucer.

Under the hood: **Three.js** on **WebGPU** with **TSL** stylized lighting — purple shadows, SSAO, tilt-shift and depth of field — procedural islands from a seeded RNG, a **Cloudflare Worker** with a Durable Object per room for the online mode, and adaptive resolution with a lighter post-processing layer to keep phones cool.

## Technical details

- WebGPU
- TSL
- Procedural Islands
- Online Co-op
- Split Screen
- Cloudflare Workers
- Stylized Lighting
- Adaptive Resolution
- Mobile Touch Controls
- Three.js

## Links

- [Open the live project](https://odd-and-out-game.vercel.app/)

## Related articles

- [Odd & Out: a co-op alien game built in six days](https://andersonmancini.dev/blog/odd-and-out.md)

## More projects

- Previous in Games: [Slice Tilt](https://andersonmancini.dev/projects/slice-tilt.md)