Wood Nuts Bolts Screw is a free online 3D puzzle game where your goal is to remove and reattach nuts and bolts in the correct order to clear each wooden board. Built in Unity, it runs directly in your browser with no download or install required. Every level gives you a tangled arrangement of screws and bolts that must be loosened and moved in just the right sequence.

What makes this game genuinely challenging is the layered logic behind each puzzle. You can't just randomly unscrew everything – some bolts are locked in place until others are removed first, forcing you to think several steps ahead. Levels progressively introduce more complex arrangements, tighter spaces, and more pieces to manage. The satisfying click of each bolt sliding free keeps you coming back for one more level, even when you've restarted three times already.

This game is a great pick for fans of screw puzzle games, bolt sorting puzzles, and brain teaser games that reward patience and logical thinking. If you enjoy nut and bolt unscrew games, 3D mechanical puzzles, or relaxing but mentally engaging single-player games, Wood Nuts Bolts Screw delivers exactly that. It's well suited for puzzle lovers of all ages looking for a free browser game that actually tests your problem-solving skills without flashy distractions.