Bitmagic launches the GDK: a game development kit built for coding agents
Claude Code, Codex and Cursor can write a game's code. None of them ships a 3D engine, an asset pipeline, servers, or anywhere to put the result. The Bitmagic GDK hands them all four, and turns a single pasted prompt into a playable, hosted 3D game.
Helsinki, Finland — August 27, 2026. Bitmagic today released the Bitmagic GDK, a game development kit designed to be driven by AI coding agents rather than by a person clicking through an editor. It installs into any project with one command and works with the agent the developer already uses.
The GDK closes the gap between an agent that can write code and a finished game. A developer pastes a single prompt into Claude Code, Codex or Cursor. The agent installs the kit, signs the developer in, asks what they want to build, and scaffolds a real 3D project with Bitmagic's engine vendored in as readable TypeScript source. Physics, characters, vehicles, cameras and networking are all included, editable line by line.
Watching the game get built
From there the developer watches rather than waits. bitmagic dev
serves the game and an editor over the same running world on one page, reloading on
every change the agent makes and listing each character, vehicle and skybox as it is
generated.
The kit also gives the agent something it has never had: the ability to see the game
run. bitmagic verify boots the game in a
real browser, starts gameplay the way a player would, screenshots what it sees, and hands
the errors straight back. Bugs get fixed without the developer having to describe
them in words.
What ships in the kit
Physics, characters, vehicles, cameras, controls and netcode land in the developer's own repository as TypeScript they can read, edit and debug.
Characters, vehicles, props, skyboxes, animation and sound are generated straight into the running world. Whole playable levels come from a prompt too.
One command puts a game live on bitmagic.ai: hosted, shareable by link, private by default, and discoverable by the players already browsing the site.
Multiplayer and global leaderboards run on Bitmagic's servers with no backend to operate. bitmagic ios packages a native iOS build for TestFlight.
"Coding agents got good at writing games faster than the industry got ready for them. What they were missing was everything around the code. An engine worth building on, art and sound, a way to tell whether the thing actually runs, and somewhere to put it when it does. That is what we packaged." — Ilmari, Bitmagic
Who it is for
The GDK is aimed at developers who already work with a coding agent every day and want to point it at games. It sits alongside the Bitmagic Creator, the company's browser-based AI game editor, which remains free to start and needs no terminal. The two share one account, one spark balance and one publishing pipeline.
Games built with the kit belong to the developer. The engine is licensed rather than sold. Creators can modify it, sell the games they make with it, and ship them off the platform, including to Steam, itch.io or their own hosting, with no obligation to publish through bitmagic.ai. The licence for a version obtained is perpetual, so a project keeps working even if a subscription lapses.
Availability
The Bitmagic GDK is available today with a Bitmagic Pro subscription, which also carries a recurring spark allowance covering the asset and level generation the kit performs. Setup instructions and the full command reference are at bitmagic.ai/gdk.
About Bitmagic
Bitmagic is an AI-first game development company founded on a simple idea: anyone should be able to create games. Over three billion people play games; only a small group makes them. Founded by industry veterans with decades of experience in games, game engines and AI, and drawing on Finland's game and demoscene history, Bitmagic builds tools that turn natural language into fully interactive, multiplayer 3D games. The company won "Most Innovative AI Pilot 2025" at the Finnish AI Gala.
Media enquiries: contact@bitmagic.ai