Precision without rebasing
World positions remain 64-bit. The universe does not slide around the player to preserve the illusion of stability.
Development transmission / 001
One world.
No seams.
AsteronEngine is the purpose-built native engine behind ClaudeCitizen—a seamless journey from the ground, through a moving ship, and into orbit.
World space64-bitSimulation60 HzGraphicsVulkan 1.3SourceC++20
01
The game
What is ClaudeCitizen?
ClaudeCitizen is a persistent planetary-scale space game built around a physical sense of place.
You are not a camera that changes levels. You are a person in a world: standing on a planet, boarding a ship, moving through its interior as it flies, leaving through an airlock, and returning to the surface. The journey is the game, and every metre should belong to the same connected universe.
Visit ClaudeCitizen ↗02
The technology
Built for the journey,
not the marketplace.
AsteronEngine is not a general-purpose engine. Every system exists because ClaudeCitizen needs it, and every constraint is chosen around one continuous planetary world.
Frames that move
Planets, ships, and stations are first-class reference frames, making interiors and EVA consequences of one model.
Deterministic by design
A fixed simulation tick, client/server authority, and one owner per state keep the world reproducible.
Text is the source
People, tools, and AI agents work on the same readable scenes and prefabs. The editor is a view, not a gatekeeper.
03 / OPEN CHANNEL
Join the transmission / Discord
Help us build
the next world.
Follow AsteronEngine as it takes shape, see work in progress before it reaches the devlog, share ideas, and meet the people gathering around ClaudeCitizen.
Join our Discord ↗Development updatesBehind the scenesCommunity discussion
04
Field notes from development
Latest from the devlog.
0102
The Ship Is a Coordinate System
How moving reference frames let a player board a ship, fly from a planet into orbit, and step into EVA without a teleport or a special case.
Why we're building AsteronEngine
ClaudeCitizen needs one continuous world—from boots on the ground to a ship in orbit. We're building the engine around that promise.