01 / COMPOSE
Bring what you need.
Build from a modular core. Add the capabilities your project uses, with optional modules that can be stripped from a published player.
Explore the building blocks
GROWING IN THE OPEN NATIVE · MODULAR · AGENT-READY
Small core.
Wild possibilities.
Make games and interactive worlds with an engine that connects the pieces—and makes room for your ideas.
Open source. Built on .NET 10. Currently in alpha.01 / A SMALL CORE. A LIVING NETWORK.
C# / .NET 10Vulkan firstNative desktop + mobileComposable modulesPower-aware by design
ROOM TO MAKE SOMETHING DIFFERENT
Connected tools.
Independent ideas.
A scene, a state machine, a UI, a little bit of code. Mycelium gives them a shared language, so you can focus on what happens when they come together.
02 / CONNECT
Make the pieces talk.
Scenes, UI, state machines, and scripts share data through a blackboard. Commands connect authoring, undo, and automation.
Read the key concepts03 / EXPERIMENT
Keep your hands on it.
Work in a dockable editor, author UI and themes, and run your project in the Game tab. Inspect and automate the same tools over MCP.
Open an example
A QUIET PLACE TO BUILD
Night Garden in the running editor. Violet + Mint, with roots enabled.Explore the engine theme
LESS WASTE. MORE POSSIBILITY.
Be generous
with imagination.
Careful with resources.
Efficiency is a design value.
Batch work. Avoid unnecessary allocations. Let an idle screen rest. Mycelium treats the CPU, GPU, and battery as resources worth respecting.
Small hardware deserves big ideas.
Lower-end devices are a guiding baseline. A smaller footprint is a practical engineering goal, not a measured carbon claim.
Keep the connections visible.
Open source, readable project files, and observable commands give people and tools a common way into the engine.
COMPOSE YOUR STARTING POINT
Your project.
Your ingredients.
Explore a few optional capabilities. This is a conceptual module selection, not a build-size calculator; actual dependencies are resolved by the engine.
3
optional ingredients selected
Mycelium.Audio
Mycelium.Localization
Mycelium.Power
Your idea decides what belongs.
BUILT IN THE OPEN
A growing engine.
An honest roadmap.
Mycelium is alpha software. Try it, read the code, and help shape what comes next. Feature maturity varies.
Ready to explore
- Modular host and native rendering
- Scene, state-machine, and blackboard workflows
- Themeable UI and a dockable editor
- Command automation and MCP access
Preview territory
- Tilemap and terrain authoring
- Animation timeline and skeletal workflows
- 3D rendering and world-space UI
- Mobile workflows and application accessibility
Native targets only; no web export. Rigid-body 3D physics and networking are not implemented. Read the current roadmap.
START SMALL. SEE WHAT GROWS.
Give your next idea
somewhere to take root.
Start with an example. Make one thing move. Go from there.