Open when it is ready.
The source is planned for release under MIT or Apache-2.0 after the early development boundary is ready.
Open-source release planned / Rust
Meridian
I started Meridian because the game I wanted to make needed an engine I couldn’t buy.
Source is private during early development. Release is planned under MIT or Apache-2.0.
01 / Why it exists
The game came first. The engine followed.
Meridian is an experimental general-purpose engine for games and interactive applications, written in Rust and built around one integrated creator application.
Project Meridian is the first proving game. Reusable systems are being prepared for the eventual public engine repository; the game’s creative work stays in its private repository. That keeps the engine useful without turning the game inside out.
02 / Use Meridian
Built for people who want to work close to the engine.
Meridian is under active development. Its source remains private while the foundations and release boundary are prepared.
Keep the tools together.
The engine and its creator application are one product instead of separate layers with separate rules.
Follow what is real.
The repository separates working foundations, evidence, and future direction so experiments do not masquerade as finished features.
03 / Named systems
Four ambitious parts of the engine.
The marketing pages explain what they are trying to become. Their technical guides carry the exact implementation details.
01
RenderingPartial / Transitional
Penumbra
/pəˈnʌm.brə/Meridian’s partial, transitional renderer: direct PBR, cascaded shadows, diffuse IBL, extraction, timing, and capture foundations beneath a planned production Forward+ path.
02PhysicsTransitional
Cairn
/kɛrn/A transitional Rapier-backed physics wrapper and grounded-controller foundation; Meridian-owned Cairn solver internals remain planned.
03AudioScaffold
Wavefront
/ˈweɪv.frʌnt/An adopted audio and acoustics architecture with a scaffold crate; no mixer, decoder, device backend, music runtime, voice stack, or acoustic solver exists yet.
04Procedural authoringImplemented foundation
Alluvium
/əˈluː.vi.əm/An implemented foundation for canonical recipes, strict scalar evaluation, stable generated identity, cache recovery, CLI work, and a basic inspector; production integrations remain ahead.
04 / Direction
The broader engine is still under construction.
Meridian is under active construction. Working foundations and future systems live side by side in private source and are described here without pretending the complete product already exists.
05 / Documentation
For developers and curious souls.
The approachable guide lives here. Normative specifications and evidence remain in the private engine repository until the source release.