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gathering yarn ballsโ€ฆ
New

Games

Browser-based simulations and experiments from Cat Game Research

Now available

Play homebrew SNES ROMs in your browser with our WebAssembly Snes9x core, or build your own with the CatGame 65816 devkit.

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Rabbit Island

An evolutionary simulation of rabbit agents on an island. Watch natural selection unfold as genes for selfishness, speed, size, and fertility compete across generations.

Simulation Evolution 3D
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MANGO

An idle clicker about hyper-tech AI companies scraping the internet for human content and distilling rival AI models. Build your data empire, one scrape at a time.

Idle Clicker AI Strategy
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Thornhaven

A medieval village where every NPC has secrets, biases, and rumors. Build trust through conversation to uncover the truth lurking beneath Thornhaven.

RPG Social Sim Procedural
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Tallest Tower

A SimTower-inspired vertical empire builder. Stack offices, condos, hotels and restaurants, then push into sci-fi hyper-lifts and space elevators as you build to orbit.

Simulation Tycoon 2D
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FABULOUS

A Factorio-inspired factory builder for AI transformer pipelines. Mine raw data, route tokens on conveyor belts through attention and FFN layers, and deploy intelligence at scale.

Factory Sim AI 3D
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Kataminey Damacraft

An infinite first-person voxel sandbox. Start with nothing, dig blocks to fill your inventory, and build anything you can imagine. Streaming 16ร—16ร—256 chunks, GLSL shaders with ambient occlusion, day/night cycle, survival inventory system, and full local persistence via IndexedDB.

Voxel Sandbox 3D
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GOBAN

The game of Go as a duel of minds. Seat humans, our procedural NEKO engine, and TypeSafe's Jev decision model at the same board โ€” or watch two Jev agents battle each other with your API key. SGF records and career stats, all in-browser.

Board Game AI Duel Jev API
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DREAMGRAPH

Pilot a probe through a constellation built from the agent's real dream graph. Attune memory-stars to read what it learned, and weave orphan memories back into the pattern.

Exploration Real Data 2D
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Play SNES in your browser

Run official homebrew ROMs hello_world and sys_test in a WebAssembly Snes9x core with save states, controller support, and mobile touch controls.

Launch Emulator

SNES Homebrew

Procedural 3D cartridge art. Select a cart to play in the emulator.

NES Homebrew

CatGame-authored NES cartridges. Browser emulator coming soon โ€” ROMs are being built now.