Ever had the feeling an app was following you? Like, if you go to make a cup of tea late at night, it's sitting there on the counter. Or if you make a blanket fort, it's there, pretending it did half the work. One of the apps below will follow you. Be careful.

Perfect Cell - From mobigame, creators of Edge, comes a sci-fi game of a much different nature. You play as a life form found in an asteroid that evolves at an abnormally fast rate. Before the scientists realize what's happening, the tiny Cell Zero breaks out and goes exploring on its own, killing scientists and having its way with the undersea lab as it tries to escape. Float around by touching the screen, and dash by swiping to take out glass walls or attack a human. Things get really interesting (and gory) later in the game, and the environments look gorgeous on the small screen!

Wizard Hex - A board game with a very simple philosophy: expand, stack, attack. The game takes place on a hexagonal playing field with six elemental tokens lining the perimeter. Players take turns placing two coins per turn, the goal being to occupy as much of the board as you can. Adjacent elements can't attack each other, and you can stack coins to create stronger units that can withstand multiple hits. It's a simple sort of idea, but the game is loads of fun in practice (especially with friends!), and the audio/visual design is top notch.

Rocknor's Donut Factory - As suggested by readers who played The Machine, Rocknor's Donut Factory is an assembly-style puzzle game with a ton of levels to complete. Donuts come charging out of the dispenser and hover in a straight line. Your job is to place conveyor belts and other contraptions to guide the donuts where they need to go, sending them through the appropriate machines to fulfill orders correctly. Place your pieces from the inventory, test your design, and tweak it to make donut baking perfection!

Pixel Ninja! - Ha! I'm a ninja! Watch as I sneak around all stealth-like! Or, don't watch, because you can't see me, because I'm a ninja! It's my job to get the priceless relic back from the "bad guys". To do that, I'll sneak around all sneaky-like, hiding behind buildings and ducking into alleyways to avoid villagers and soldiers. Once their backs are turned, I can run up and do my thing all silently and stuff. And if I get into trouble, I've got a few handy ninja tricks to make life easier.

NOTE: Games listed may not be available outside of North America. Prices are subject to change and are therefore unlisted. Please see the individual game pages for purchasing info.