Robots you can play.

Hand Claude a rigged robot, mech, drone or creature. It keeps the model's skeleton and its own animations, and gives you back a page where the model is a character: idle, walk and run blend as you speed up, every clip is a key you can press, and the camera follows you around the floor. It runs in any browser, in real time.

• The rig stays intact

  three.js GLTFLoader loads the node tree, bones and clips untouched. Each mesh gets a styled twin as its own child, so every line rides the animation instead of being baked flat.

• Its own animations, blended

  An AnimationMixer cross-fades idle, walk and run by speed. Moves (wave, shoot, jump) fade in over the gait and back out; falls hold their pose until you move again.

• Feet that don't slide

  Ground speed is measured from the walk clip itself: how fast a planted foot slides back under the body. So the robot moves exactly as fast as it steps.

• Hairlines that bend

  A skin-aware outline shader follows bones and face shapes; crease lines are pinned to the bone that carries them; where parts meet (eyes in a face) contact lines are computed once and drawn as folds.

• Game controls

  WASD relative to the camera, shift to run, a follow camera that swings in behind you, tap-to-walk and a button bar on phones.

• Lights from real sources

  Eyes, lenses and sensors light in one accent colour; real three.js lights put a pool on the floor; footsteps light the square they land on; guns flash. Light theme stays flat, with no glow.

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Upload a drawing of your own robot and Playable builds it for you, already rigged. Claude reads the drawing, works out its parts and where it bends, and builds it from solid pieces on a skeleton: here, 30 joints for a hip and chest that flex, a neck and head with swivelling ears, four legs with a joint at every ring in the drawing, and a seven-part tail.

1. Parts, not a mesh. Every piece is its own solid on its own joint, so the lines stay crisp however it moves.
2. Motion worked out live. A four-legged gait that turns from a walk into a gallop as it speeds up, with each paw planting on the floor and lifting in an arc, a head that stays level and a tail that swings like a spring. Its moves (sit, stretch, pounce, lie down) are poses run through the same solver, so the same controller drives it like a downloaded model.
3. Lights that fit the design. The eyes, the rings at every joint, the inner ears and the tail tip light up, and each paw lights the square it lands on.