How to Play Angle Builder
Click a joint or press keys 1 through 6 to select it. Press Q or E, or use the on-screen rotate buttons, to turn the selected joint by 15 degrees. Match every joint angle with the ghost blueprint. Press R to restart the current structure and P to pause.
About Angle Builder
Angle Builder is a free browser geometry puzzle where a structure is built from connected beams and rotating joints. Select a joint and turn it clockwise or counterclockwise in 15-degree steps. Every joint changes the direction of the structure that follows, so you must match the complete blueprint with exact angles.