Coopgame3js
Three.js platformer + co-op + tools
Games
🌐
Co-op Online
Match with another player over the internet. Each of you controls one character.
game2p-online.html
2P
Co-op Local
Two-player local co-op on one keyboard. P1 below, P2 above. Buttons, doors, seesaws, push platforms.
game2p.html
1P
Single-player Platformer
The original side-scroller — coins, levers, a key + locked door, and a 3D bonus zone.
game.html
⚖️
Balance Level
Wii-Party-style seesaw platform that tilts based on player position.
balance.html
Editors
3D
Level Maker (3D)
Place blocks, doors, and interactive elements in 3D and export.
levelmaker3d.html
2D
Level Maker
Grid-based editor — defines the seesaw doors and other custom procedural meshes.
levelmaker.html
⚖️
Balance Editor
Tweak the balance level layout.
balance-editor.html
Dev tools
🛠
Collision Mapping
Inspect bounding boxes and tune collider sizes per asset.
utilities.html
📐
Dungeon Inspector
Logs dimensions of every Kenney mini-dungeon GLB to the console.
inspect_dng.html
📦
Asset Pack Overview
Kenney Platformer Kit reference page (third-party).
Overview.html