A semantic memory layer for the spatial internet.
Places hold memory. Multiple knowledge graphs coexist without collapsing.
Photorealistic Gaussian splats create stunning 3D environments — but they are ghost worlds. No memory, no events, no searchability. Beautiful places you can see but can't understand.
ROOM adds the missing layer. A semantic memory graph that gives spatial coordinates meaning — not collision meshes, not physics, but knowledge.
Gaussian splats give you the Visual. ROOM gives you the Meaning.
┌──────────────────────────────────────────────────┐
│ 🎨 Visual Pixels, textures, rendering │ ← Gaussian Splats
├──────────────────────────────────────────────────┤
│ 📐 Geometric 3D shape, volume, topology │ ← Meshes
├──────────────────────────────────────────────────┤
│ ⚙️ Physical Collision, dynamics, forces │ ← Physics engines
├──────────────────────────────────────────────────┤
│ 🧠 SEMANTIC Meaning, memory, knowledge │ ← ROOM ✦
└──────────────────────────────────────────────────┘
ROOM operates at the foundational Semantic layer — below everything else. It adds what Gaussian splats are missing: what a place means, not just what it looks like.
ROOM reduces spatial memory to four atomic types — mirroring how the hippocampus encodes it.
| Primitive | Symbol | Role |
|---|---|---|
| Place | 📍 | A spatial coordinate or region. The irreducible ground. |
| Event | ⚡ | A happening anchored to a Place with a timestamp. |
| Perspective | 👁️ | A viewpoint on an Event — carrying ontological metadata. |
| Artifact | 📄 | A crystallized output — document, media, or insight. |
Multiple Perspectives on the same Event coexist without collapsing. An architect sees structure. A sociologist sees gathering patterns. A mythologist sees story. All are true simultaneously.
→ room-openmetaverse.vercel.app
Four pages, zero build step:
| Page | What it does |
|---|---|
Landing (/) |
Spatial stack explainer, Ghost World problem/solution, four primitives, demo flow |
Tower (/tower) |
3D Three.js model of Frontier Tower with interactive floor labels — click a floor to explore its knowledge graph |
Viewer (/viewer) |
3D scene with semantic node overlays, WASD navigation, guided 14-stop tour, ontology filtering, perspective switching |
Editor (/editor) |
D3.js force-directed knowledge graph editor with full CRUD, drag persistence, JSON export, and Claudesidian PKG bridge |
git clone https://github.com/innercartography/ROOM.git
cd ROOM
# No install. No build. Just serve.
npx serve . -l 3000Open localhost:3000 and explore.
room-openmetaverse/
├── index.html Landing page — hero, spatial stack, primitives, demo flow
├── tower.html Three.js 3D tower with interactive floor navigation
├── viewer.html Three.js 3D viewer + CSS2DRenderer + guided tour + WASD
├── editor.html D3.js force-directed graph editor + entity sidebar
├── room.js Shared data layer — CRUD, queries, validation, events
├── styles.css Design system — dark space theme, glassmorphism, animations
├── sample-world.json 18-node demo graph (Frontier Tower · knowledge capsules)
├── world.json User's active world file
├── rp1-scene.json RP1 spatial fabric scene config
├── frontier-tower.jpg Hero image of the building
├── favicon.svg ROOM logo
└── vercel.json Deployment config (clean URLs, CORS for JSON)
A zero-dependency shared module exposing the full ROOM API:
ROOM.loadWorldFromURL('sample-world.json'); // Load a world
ROOM.getPlaces(); // → all Place nodes
ROOM.getEventsAtPlace('place-lobby'); // → Events anchored here
ROOM.getPerspectivesForEvent('event-hackathon'); // → Multiple viewpoints
ROOM.getPlaceContext('place-16th-floor'); // → Full context tree
ROOM.obsidianToPerspective(markdown); // → Claudesidian bridge
ROOM.exportWorld(); // → Portable JSON
ROOM.validate(); // → Schema validationFlat JSON graph — portable, human-readable, no build step required.
{
"version": "room/v0.1",
"meta": { "title": "...", "created": "..." },
"nodes": [
{ "id": "place-lobby", "type": "place", "label": "Frontier Tower", "position": [0,0,0] },
{ "id": "event-kickoff", "type": "event", "label": "Hackathon Kickoff", "time": "..." },
{ "id": "capsule-thesis", "type": "perspective", "ontology": "experiential", "content": "...", "capsule": true }
],
"edges": [
{ "source": "event-kickoff", "target": "place-lobby", "type": "anchored_at" }
],
"tour": { "title": "...", "waypoints": [{ "node": "...", "narration": "..." }] }
}Edge types: anchored_at · observes · produced_by · leads_to
Ontologies: architectural · social · experiential · mythological · technical · personal · bioregional
The demo graph includes knowledge capsules — spatialized perspective nodes drawn from the ROOM Hyperblog, omb.wiki, and Resonance Lab field notes:
| Capsule | Ontology | Location |
|---|---|---|
| 🧠 The Collective Hippocampus | Technical | 16th Floor |
| 🌐 The Spatial Fabric | Technical | 16th Floor |
| 🏛️ Places Can Remember | Experiential | 16th Floor |
| 📜 Open Standards | Technical | 16th Floor |
| 📐 The Missing Semantic Layer | Technical | 16th Floor |
| 🔒 Knowledge Sovereignty | Personal | 16th Floor |
| 🔬 Resonance Lab — Field Notes | Social | 16th Floor |
| 🏘️ Digital Villages | Social | Alien Lounge |
| 🔮 Shards of Memory | Experiential | Alien Lounge |
| 👽 Alien — Proving Humanity | Technical | Alien Lounge |
| 🪙 Tokens in the Spatial Fabric | Social | Alien Lounge |
Three spatial captures from the 1st Annual Open Metaverse Hackathon:
| # | Location | Description |
|---|---|---|
| 1 | 🚪 Lobby & Entrance | Street-level threshold at 995 Market St |
| 2 | 🛸 The Alien Lounge | Silver mylar, the Arecibo message, and alien.org — proving humanity in the age of AI |
| 3 | ⚡ 16th Floor Hackathon Space | Where builders gather and ROOM came alive |
| Partner | Role |
|---|---|
| RP1 | Open metaverse browser · spatial fabric · the map of the metaverse |
| arrival.space | Gaussian splat hosting + streaming |
| Claudesidian | Obsidian markdown → ROOM Perspective nodes (personal knowledge graphs) |
| Polycam | Spatial capture → .ply export for Place nodes |
| alien.org | Decentralized human verification · token interoperability for spatial villages |
| Metaverse Standards Forum | Open metaverse interoperability standards |
ROOM is documented through a living hyperblog — a spatial essay that evolves with the project:
Open Metaverse Hackathon · March 7–8, 2026 · Frontier Tower, San Francisco
ROOM is a PLACES track entry — building a semantic digital twin of Frontier Tower. Three spatial captures, eleven knowledge capsules, multiple ontological perspectives, one shared memory graph.
MIT — You own what you create.
Built by Inner Cartography for the 1st Annual Open Metaverse Hackathon.