Kikiwaka Shuffle is one of those simple but weirdly satisfying puzzle games where you slide campers around to get them into their cabins. You start with a grid full of kids in different colored shirts, and you've gotta shuffle rows or columns to match 'em up—like a summer camp version of those old tile puzzles.

At first it seems easy, but after a few levels, you'll realize some of these campers are stubborn. The red-shirt kid always ends up blocking the path right when you think you've got it. And don't even get me started on the later levels where you have to deal with multiple cabins at once. It's the kind of game where you tell yourself "one more try" at 2 AM.

Perfect for killing time between actual summer camp activities—or pretending you're at camp while avoiding sunlight.