Toolbox Sort — tool sorting with part merging
Parts can only go onto an empty space or onto the same part. Every level is built around that rule. It’s sorting by trays: you take the top parts from one tray and move them to another. Matching parts merge into a bigger tool. A longer tool takes up more space, so where you place each part matters.
You clear a level when each tray has only one type of tool left. The fewer moves you use, the more stars you get, up to three. Stars help you build cars: a robot, a racing kart, and a rocket. Finished cars earn coins even while you’re away from the game.
Besides levels, there are chests, a card album, a daily puzzle, and league duels. A similar challenge with nuts and bolts is in Nuts Bolts Sort.