Where’s my Water 2
Free fun (with a catch)

Swampy the alligator is back for more water physics fun. The second version of this popular game is similar to the first: Players are tasked with getting clean water from one end of the screen to an expectant reptile at the other. As levels advance, the obstacles grow trickier, such as liquids that turn your cleansing water to poison. The big change: This time anyone can download it for free.

Like many free games, this one isn’t shy about asking users whether they want to buy little boosts that can help them. Parents should take note: Real money may be at stake in this game. Don’t ignore Disney’s pop-up notification about the in-app purchases. All in all, however, it’s a fun and challenging puzzle game, with fun hidden levels. Free, for iOS devices, Windows Phone and Windows.

Where's My Water 2 (itunes.apple.com)

— Hayley Tsukayama