A semantic loop, not a scene graph
World truth follows Entity/Relation → Action → Event → State → Scheduler / Behavior / Agent → Replay → Projection. Renderers consume projections only.
World Machine · Experimental · pre-alpha · macOS
Branchable worlds you can inspect
An experimental semantic runtime: Entity/Relation → Action → Event → State → Scheduler → Replay → Projection. Hosts Tiny Society, Pocket Universe, and Micro Company packs on macOS.
Briefing A place wakes. Notice the first relationship forming. Commands
- Observe the first cycle
- Steer gently
- Leave the world alone
Collection
- Place · seeded
- Relation · forming
- Agent · optional
Timeline
- t0 · world opened
- t1 · pack activated
- t2 · branch offered
Entity → Action → Event → Statead-hoc · not notarized
Experimental semantic runtime
Inspectable worlds with explicit projections
World Machine keeps semantic state in the runtime and feeds GPUI through projection snapshots. Packs supply domain worlds; the kernel stays generic and pre-alpha.
What the runtime does
What the runtime does
Briefing and Commands stay in focus
The GPUI host surfaces the next continuation before Canvas and Inspector. Collection, Focus/Explore, and Timeline scroll independently so long worlds stay inspectable.
Durable .world documents and packs
The macOS desktop host opens `.world` documents with branching/lineage, installs external `.worldpack` files after review, and keeps Pack code out of the kernel.
Packs exercise the same boundaries
Tiny Society, Pocket Universe, and Micro Company use Host/Pack contracts. Included packs still require explicit Review & Install before activation.
How a world runs
How a world runs
Open or create a .world
The desktop host owns durable `.world` documents. Branching and lineage stay with the document, not with UI chrome.
Review and install a pack
Double-click or Open With a `.worldpack` only opens static review. Installation runs quarantine, durable probe, and activation — never on the open event alone.
Act, then inspect projections
Actions produce events and state. Projection snapshots feed Collection, Timeline, Inspector, and Semantic Canvas without the renderer owning world truth.
Branch what happens next
Larger interventions are optional branches. Replay and projection keep prior state inspectable after you fork a path.
Experimental status
Experimental status
Pre-alpha by design
World IR and public APIs are intentionally unstable. This is an experimental runtime, not a production product release.
Ad-hoc signed, not notarized
Current macOS packages are ad-hoc signed and not notarized. Treat them as experimental distribution artifacts, not Gatekeeper-ready releases.
Domain stays in packs
world-core owns semantic primitives only. Person, Town, Company, and similar domain concepts live in packs — never in the kernel.
What it is not
Not a game engine marketplace, not multi-user SaaS, and not a notarized Mac App Store build.
Questions & source
Is there a GitHub release yet?
Not as a production GitHub Release. Pre-alpha packaging scripts exist in-repo; see docs/PRE_ALPHA_RELEASES.md. Prefer building from source or following that note.
Which platforms are supported?
The desktop host targets macOS. CLI and workspace tests run via Cargo; GPUI packaging is the macOS path described in the README.
Are included packs auto-run?
No. Pocket Universe and Micro Company ship as included external packs. Home requires explicit Review & Install before content review, quarantine, probe, and activation.
What license does it use?
Apache-2.0.