Nuts Bolts Sort

If you're the type who can't leave a junk drawer messy, Nuts Bolts Sort is going to feel like home. The whole game is one simple rule: nuts stack on bolts only if the colors match, and it's on you to untangle the mess one click at a time.

Early levels feel almost too easy, just a few colors and a little space to work with. Then the difficulty creeps up, more colors, tighter stacks, and suddenly you're holding the whole puzzle in your head before you dare make a move. That's where the brain-training part kicks in.

The graphics are clean, the sound effects lean into ASMR territory, and the whole thing is built to be as relaxing as it is tricky. Stuck? Restart the level or grab one of the free props to help you through. It plays in the browser on desktop, Android or iOS, no download needed.

If sorting by color is your thing, Sorting Games and Brain Training Games like this one are worth a look, or try Puzzle games for more of the same itch.

Sort every nut onto a bolt that matches its color until the board is clear.

Click a bolt to move its top nut onto another bolt. You can only stack nuts of the same color together, and the target bolt needs enough free space to take the move.

Plan a couple of moves ahead before you click, since a careless stack can box you in. If you do get stuck, just restart the level, or use one of the free props to get unstuck.