Boltwright: Screw Puzzle

Contains adsIn-app purchases
Content rating
Everyone
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Everyone
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About this game

Unscrew the bolts, sort them by color and watch the wooden planks tumble. Boltwright is a calm nuts and bolts puzzle where every cleared board builds a piece of a wooden toy.

120 handcrafted levels, no timer, and every level is proven solvable without boosters.

HOW TO PLAY
• Wooden planks are stacked in layers and held by colored screws.
• You can only unscrew a screw that no plank is covering.
• Each screw goes into the box of its color: two boxes are open, three slots each, and you can see which boxes come next.
• No matching box? The screw waits in a 5-slot tray. If the tray fills up, the level is lost.
• A plank with no screws left falls. Planks swing on their last screw before they drop, with real physics.
• Clear every plank to win.

GRANDPA'S WORKSHOP
You have reopened your grandpa's old wooden toy workshop. Each solved board assembles part of a toy: a rocking horse, a toy train, a birdhouse, a music box, a sailboat, a windmill, a toy truck, a carousel, an airplane, a dollhouse, a lighthouse and a grandfather clock. Finished toys go up on the workshop shelf, and short letters from grandpa wait between chapters.

FAIR BY DESIGN
• Every level is checked to be solvable without boosters. No rigged boards.
• No timer. Think as long as you like.
• Ads are kept in check: none in the early levels, never right after a failure, only between levels, and no banner ads.
• Remove ads with one purchase, and also get booster rewards without watching videos (daily limit).
• Colorblind-friendly: every screw shows a number and a symbol as well as a color.
• Plays offline.

BOOSTERS FOR TRICKY BOARDS
• +1 slot: an extra space in the tray
• Undo: take back your last move
• Hammer: knock out a screw
Use coins, or watch an optional video if you want.

FEATURES
• 12 chapters × 10 levels = 120 handcrafted screw puzzles
• Relaxing wood puzzle and brain teaser in one
• Warm, hand-built workshop look
• 12 in-app languages

Questions or ideas? leehywo@gmail.com
Unscrew colored bolts, drop wooden planks and rebuild grandpa's toy workshop.
Updated on
Sep 26, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    App activity and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

First release: 120 handcrafted screw puzzle levels across 12 chapters. Unscrew, sort and rebuild grandpa's wooden toys.