Rumpus Engine

BUILD IT · BREAK IT · SHARE IT

RUMPUS ENGINE is a free game studio that runs entirely in your browser. No download, no install, no account. Open it and you're either playing a world someone built — or building your own.

Shape a level in the in-game editor, press DEPLOY, and you're playing it seconds later. Then share it as a link. Anyone who clicks is standing inside your world — on a laptop, a phone, or a controller.

🎮 MAKE ANY KIND OF GAME

The same editor builds:

• First-person shooters — wave survival, extraction, defend, escort, hunt
• Racing games — sketch your track with your finger and the engine builds it, then race AI rivals or your own ghost lap
• Top-down twin-stick shooters
• 2.5D side-scrollers
• Puzzle & adventure levels — no weapons, just exploration

🛠️ A REAL EDITOR, NOT A TEMPLATE

• Place props and primitives, paint terrain and floors, carve water zones, set lights and real HDR skies
• Cinematic camera tools for cutscenes
• Import free 3D models from Poly Pizza and Sketchfab straight into your level
• Bring your own characters — rigged models get automatic animation retargeting, with a joint editor to fix the quirky ones
• Weapon loadouts with attachments that actually change gameplay: scopes magnify, extended mags hold more, suppressors shrink the range enemies hear your shots

🌐 PLAY TOGETHER

Peer-to-peer multiplayer, no servers between you and your friends:

• Co-op waves · 1v1 duels · free-for-all · team deathmatch · king of the hill · multiplayer racing
• A live "Open games" list — browse who's hosting and join with one tap

🌍 A COMMUNITY THAT SHIPS

• Browse the built-in level library and play anything instantly
• Open any published level in the editor to see how it was made — and remix it
• Submit your own for everyone to play. No account required.
• Everything is free. Built on open source (three.js + Rapier physics).

▶ Play here or at rumpusengine.com

📖 Field manual & tutorials included in-game