FUSE/GRID is a single-player, deterministic bomb-grid arcade you play in the browser. Flip REAL 3D ⇄ CLASSIC 2D from the cabinet menu, pick your Heat on LEVEL SELECT, and clear every enemy to advance.
Play now: https://hmarzban.github.io/fusegrid/
Share that URL with the trailing slash so chat apps load the preview card (og.png, 1200×630). The no-slash redirect drops Open Graph tags.
- REAL 3D ⇄ CLASSIC 2D — menu RENDER toggles WebGL and classic Canvas; no reload.
- Heat — CORE / PLUS / MAX on LEVEL SELECT (
↑/↓). CORE is the baseline run; PLUS and MAX tighten fuse, spawns, and pressure. - Eight rooms — five biomes on a fresh install (JUNGLE → ARENA), then SAND, VOID, and CROWN after your first clear.
- Pact afterburner — optional LAST / BARE / THIN / SHRINK toggles (
1–4) unlock with rooms 6–8; CORE with every toggle off matches baseline v6. - Cabinet help — HOW TO, ITEMS, ENEMIES, HIGH SCORES, and SOURCE (opens github.com/HMarzban/fusegrid).
- Chiptune + boom — each room has its own theme and blast tint.
- PWA — install from the browser; offline play after the first visit (first load still needs network).
- Pure ES modules — no bundler, no npm runtime dependencies. Three.js r160 is vendored for 3D only.
This is single-player arcade play. Internet multiplayer is not shipped. The sim is deterministic: same inputs, same outcome.
Clear every enemy in the room to advance. Gold WALL never breaks; green BRICK breaks and stops a normal blast. Collect floor cubes for bombs, flame range, kick, throw, remote, and shield. Surviving a hit leaves live bombs and blades in the world.
| Input | Action |
|---|---|
| WASD / arrows | Move |
| Space | Place bomb |
| Shift + Space | Throw (needs throw power-up) |
| Q | Detonate remote (needs remote power-up) |
| K + move | Kick (needs kick power-up) |
| P | Pause |
| M / Menu | Quit to menu |
On touch devices during a run, a virtual D-pad and bomb button overlay the stage. Power-ups marked with * in the in-game HOW TO need their pickup first.
| Room | Look | Notes |
|---|---|---|
| 1 | JUNGLE | Bright grass, gold stumps |
| 2 | ICE | White cubes, navy cliffs |
| 3 | FACTORY | Amber crates, steel |
| 4 | WATER | Teal sewer / ruins |
| 5 | ARENA | Night court, rose bricks — finale on first run |
| 6 | SAND | Ochre dunes (unlocks after first CLEAR) |
| 7 | VOID | Violet dark, tall cliffs (unlocks after first CLEAR) |
| 8 | CROWN | Gold court — finale after unlock (unlocks after first CLEAR) |
On LEVEL SELECT, ←/→ picks the room and ↑/↓ picks Heat.
| Grade | Effect |
|---|---|
| CORE | Baseline v6 — replay reference |
| PLUS | Harder spawns and tighter fuse |
| MAX | Highest pressure |
Attract mode always runs CORE with Pact off, regardless of your last selection.
Beat room 5 (FUSE/GRID CLEAR) once and LEVEL SELECT unlocks rooms 6–8 plus four optional Pact toggles. Fresh installs show rooms 1–5 only — that is intentional gating, not a bug.
| Key | Pact | Rule |
|---|---|---|
1 |
LAST | Start with one life |
2 |
BARE | No walkable floor cubes |
3 |
THIN | One fewer buried cube under breakables |
4 |
SHRINK | Arena walls close inward over time |
Toggle with 1–4 on LEVEL SELECT. A CORE run with all Pact toggles off stays bit-identical to baseline v6.
The live HUD shows raw points during play. HIGH SCORES stores Heat-scaled totals only: CORE ×1, PLUS ×2, MAX ×3.
- Browser: https://hmarzban.github.io/fusegrid/
- Install (PWA): use Add to Home Screen / Install app in a supporting browser. The app shell precaches on first visit; later sessions work offline. The first visit still needs network.
The public game is Fusegrid; this repository folder is rollblock. Clone, serve locally, and run tests — no build step.
Requirements: Node.js v26 ( "type": "module" ).
git clone https://github.com/HMarzban/fusegrid.git rollblock
cd rollblock
npm start # http://127.0.0.1:8080/index.html (loopback only)
npm test # node --testserve.js binds 127.0.0.1 on purpose. Public play is GitHub Pages (static files), not a rebind of the local server.
URL flags (append to index.html):
| Flag | Purpose |
|---|---|
?render=3d |
Start in REAL 3D |
?render=iso |
Legacy dimetric renderer |
?play=1 |
Skip intro |
?orbit=1 |
Orbit camera (3D) |
?net=local |
Local lockstep harness (1P proof, not multiplayer) |
?debug=1 |
Debug overlay |
Test Pact locally without clearing room 5: in devtools console, localStorage.setItem('nb.pact.v1','1') then reload LEVEL SELECT.
Architecture, conventions, and agent notes live in AGENTS.md.
Store/listing art (itch.io cover, room stills, and a short gameplay GIF) lives
in media/, captured from the live game — see
media/README.md for what each asset is and the zip
recipe for an itch/Newgrounds/Game Jolt HTML5 upload.
MIT — see LICENSE. Three.js r160 is vendored under MIT in vendor/three.module.js.