Water Sort Legend

Water Sort Legend puts a score on how you think. Alongside the usual goal of getting one colour of water into each tube, it runs an IQ estimator that rates you on the moves you made, so two people finishing the same level can come away with different numbers.

There are more than 150 levels, which the developer calls handcrafted, divided into Easy, Medium and Hard. They open one at a time: finish a level and the next becomes available. Every win pays out coins, and those go to an upgrade shop selling three boosters, an extra tube, a coin booster and a colour helper. The game does not explain exactly what the last two do, so their names are the best guide you have. Sound effects are included, and the whole thing fits a narrow portrait frame.

Pick a tube by clicking it, then click the tube you want to pour into. The water only moves if the pour is allowed; otherwise nothing changes. On a phone or tablet the same thing is done with two taps. Keep going until every tube holds a single colour, which completes the level and opens the next one.

Because the IQ estimator bases its score on your moves, a little planning before each pour should show up in the result. Coins come from every win, so clearing earlier levels funds the shop. An extra tube from the shop gives you a spare container to park a colour while you rearrange the rest.

A water sort puzzle with a coin economy on top. The frame is portrait. The developer says no keyboard is needed: it is played with a mouse on desktop and with taps on mobile, where the controls are tuned for touch.

Crystal Cave Sort also splits its 200 levels into Easy, Medium and Hard, with gems in place of water. Water Sort Master goes much bigger, listing over 1000 levels and six separate modes.