Nuts & Bolts 3D
Unicorn Studio Official / CTC Technology Limited
About this game
- Category Single player
- Age 10
- Updated Mar 18, 2026
- OS IOS / Android
Editor reviews
Nuts & Bolts 3D is a relaxing logic puzzle about mechanical thinking. Rotate intricate 3D contraptions, loosen the right bolts, slide plates free, and reassemble parts in the correct order to clear each stage. Every move feels tactile and deliberate, turning simple pieces into surprisingly clever challenges.
Play at your own pace offline with clean visuals, intuitive touch controls, and steadily rising difficulty. Short levels make it perfect for quick breaks, while advanced stages test planning, spatial awareness, and sequencing. Hints help when you are stuck, and smart solutions earn better ratings and unlock tougher puzzles.
Screenshots
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How to play:
Rotate the 3D model to inspect every angle and spot blocked paths.
Tap and hold to loosen or tighten bolts, then drag parts only when they are fully free.
Plan the sequence of moves to avoid trapping pieces or blocking threads.
Align matching holes, pins, and threads to assemble parts in the correct order.
Complete the level goal, such as freeing a target piece or rebuilding the structure.
Use hints when needed to reveal a next step and discover new mechanics.