Big ideas.
Simple shapes.
Build a secret word in 3D.
Your friends race to guess it.
What is FormFieber?
A free multiplayer 3D guessing game in your browser: one player builds a secret word while everyone else watches the model take shape and guesses in chat. Instead of drawing, you combine shapes in space. No game download needed.
How it works
- 1. Get a wordThe builder chooses from three options.
- 2. Build it in 3DShow the defining features before time runs out.
- 3. Friends guessEveryone else submits answers and earns points.
Build with simple shapes
Cubes, spheres, cylinders and cones are enough to start. Move, rotate, scale and color them, then correct mistakes with Undo. Multi-selection and the Cut tool help with the details.
Explore the Building Guide →Play your way
Private Rooms
Share a code with friends. The host chooses rounds, time and difficulty.
Quick Play
Find a public waiting room. Matches start when enough real players arrive.
Practice
Build alone without a timer. Save on your device or download a model file.
Your first model
Build a chair from a seat, backrest and four legs. The Building Guide includes concrete steps, common mistakes and further exercises for a snowman and a hollow cup.
Try the building exercises →