Bolt Box
Screw sort puzzle

Bolt Box

Unscrew colored bolts, sort them into boxes and clear the board. Free to play.

See it in action

About Bolt Box

Colored bolts hold a pile of plates to the board. Unscrew them, sort them into boxes by color, and clear every plate.

How it works

  • Tap any screw that no plate covers.
  • It flies to the open box of its color. Three screws fill a box and a new one arrives.
  • No box for that color yet? The screw waits in the tray, and jumps into its box as soon as one arrives.
  • Free a plate's last screw and it drops away, uncovering the screws beneath.
  • Fill the tray and the level is lost. Look before you tap.

Endless levels

Every level is built to be solvable. New colors, more plates and deeper stacks arrive as you climb.

Play your way

  • Easy, Normal or Hard: 6, 5 or 4 tray slots, with more points on harder settings.
  • Brutal: 3 slots and tougher, deeper levels for puzzle veterans.
  • One extra slot per try when you need a hand.
  • Combos for filling boxes quickly.
  • Online leaderboard with a nickname, no account.
  • English and Arabic.

Free and works offline. No forced ads: watch a short video only when you want one more tray slot. Your progress is saved on your phone.

Game design & development

How we made Bolt Box

Bolt Box was designed and developed by ProVision in Flutter with the Flame engine. All of its art and sound are made in code by our team, with nothing licensed from third parties, which keeps the game light and the look consistent.

Our level design generates endless solvable boards with deeper stacks and new colors as you climb, and the leaderboard runs on our Legion backend.

ProVision is a game design and development studio in Ramallah, Palestine. We take mobile games from the first idea to the stores: game design and level design, UI and UX design, 2D and 3D art, animation and sound design, game programming in Flutter, Flame and Unity, online leaderboards and backends, Arabic and English localization, store listings, analytics and live updates.

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