A clean, all-in-one mod for MooMoo.io — instakill, biome auto‑gear, auto heal, place spammers, click‑hats, on‑screen arrows, reload bars and a minimap, all in one simple menu. Built on an undetectable loader that sanitises the game's anti‑cheat telemetry, so the mod leaves no footprint on the wire.
Press O in‑game to open the menu.
- Instakill — one key fires your primary, then your secondary, auto‑aiming at the closest enemy (both shots). It swaps a hat + accessory in for each shot and restores your loadout afterwards.
- Reverse mode shoots the secondary first, then the primary.
- Confirmed mode waits for the server to register your swing; Timed mode uses a fixed delay.
- Auto heal — legit‑looking auto heal with a configurable threshold, jitter and max rate. Shame‑safe mode never trips the game's anti‑auto‑heal "Shame!" system.
- Auto GG — sends a custom chat message every time you get a kill (with a cooldown so multi‑kills don't spam).
- Biome gear — automatically swaps your hat to match the biome you walk into: snow → Winter Cap, the river → Flipper, everywhere else → Booster. Each slot is configurable, and it never fights your other hat features.
- Hat hotkeys — bind keys to equip/unequip any hat you own.
- Click‑hats — hold the left or right mouse button to wear a hat + accessory combo, and revert the moment you let go.
- Spammers for spikes, traps / boost pads, turrets / teleporters and windmills, each on its own key and speed.
- Humanize — adds jitter and the occasional pause so placement looks natural.
- Player arrows — minimal, see‑through chevrons around you pointing at every player and animal: enemies red, teammates green, animals blue.
- Reload bars — two bars under every player (primary + secondary), mirroring the game's native per‑weapon reload exactly — projectile‑aware (bows/crossbows move too) and swap‑aware (swapping weapons pauses the bar until you swap back).
- Item counter — a running count of each item you've placed, shown on its action‑bar icon.
- Minimap — your placed buildings (as their icons) plus resource dots and translucent biome bands over the game's minimap; press M for a full‑screen map.
MooMod runs on a loader that hooks the game's WebSocket invisibly and rebuilds the anti‑cheat telemetry packet so it reports only what the original client would — every loader/mod footprint bit is stripped while the "canary" checks a real client always passes are left intact. The loader also self‑protects: if the anti‑cheat ships a probe kind it doesn't yet handle, or its sanitiser is ever blinded, the loader detects it and warns instead of silently leaking.
| Combat | Hats (biome gear) | Visual |
|---|---|---|
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| Placement | Clicks | Config |
|---|---|---|
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In action — chevron arrows, reload bars and the biome minimap:
Press M for the full‑screen biome map:
- Install a userscript manager: Tampermonkey (Chrome/Edge) or Violentmonkey.
- Open
moomod.user.js→ click Raw → the manager will offer to install it. - Open moomoo.io and press O for the menu.
The userscript @requires the loader it needs, so there's nothing else to install — the manager fetches it automatically.
- O — open / close the menu (rebindable in the menu).
- R — instakill. M — full‑screen map. K and other keys — your hat hotkeys.
- Every toggle, key bind and value lives in the menu and saves automatically.
The installable moomod.user.js is generated from src/moomod.js. It's plain Node, no dependencies:
node build.mjs
# or point the loader @require somewhere else:
node build.mjs https://example.com/your-loader.user.jsMooMod/
├── moomod.user.js the file you install (userscript header + source)
├── src/moomod.js the readable mod source
├── build.mjs wraps src/ into moomod.user.js
├── images/ menu + in-game screenshots
└── README.md
MooMod is a personal project for learning about game clients, WebSocket protocols and browser userscripts. Using mods may violate a game's terms of service — use it on your own account, at your own risk.
MIT © al007ex