It's your first day in the shipping plant. You've been given the simple task of sorting out a few colored boxes. How difficult could that be? (For those playing at home, the answer is "immensely.") Great Permutator is a tough-as-a-titanium-statue-of-Steven-Seagal puzzle game by Ripatti Software that will remind you a lot of SpaceChem, in terms of both ingenuity and difficulty.

If you've ever seen some of M. C. Escher's paintings, you probably know what "impossible" looks like. If you play through Alexander Bruce's Antichamber, you'll know what "impossible" feels like... and also how to beat it! Set in a convoluted world where you can never be too sure which way is up, Antichamber challenges you to cast aside your usual video game logic and face a plethora of mind-bending puzzles that will have you rethinking what "impossible" means.

We've waited a long, long, long time, but the follow-up to Cliff Johnson's seminal puzzle game The Fool's Errand has finally been released: The Fool and His Money. Packed with logic and word puzzles of all kinds, and the whimsically confounding prose that made the original so enjoyable, The Fool and His Money is just the thing for players looking for a mental challenge.

Are they conveyor belts? Are they fallen trees? To be completely honest, we can't figure out what those strange laser-emitting bricks in increpare's aptly-named Puzzles are supposed to be. All we know is that they cause trouble if you touch them, but yet that danger might be the key to solving the eight enigmas in this game.

Dinos in Space is, apart from being a very cool thing to draw in your notebook while ignoring the math lecture going on in your class, a cerebral flow-based logic puzzle game from John Saba. Using arrows, switches and teleporters, your goal is to send dinosaurs from their dispensers into the appropriately colored satellite elsewhere on the grid. Sure, it sounds simple on the surface, but get your head wrapped in this game, and when you take a break, you'll still be solving puzzles in your brain.

Some people lie. Some people tell the truth. Others tell lies every other sentence, while still others tell things that are part truth, but part lie. Then there are robots, vampires, philosophers, and rabid sheep to contend with! Professor McLogic Saves the Day is a creative game of logic puzzles that is a rare gem in a sea of lookalike games. Play it, puzzle over it, and then figure out which part of the first paragraph of our review is a lie!

If you've spent any time around the indie gaming scene, you're familiar with the name increpare, also known as Stephen Lavelle. Known for creating short, small, creative and artistic-type games, increpare has jumped from the realm of experimental games to the world of full-fledged releases, unleashing the fantastic English Country Tune for the world to scratch their collective heads over. The game looks fantastic and plays like several of your favorite logic puzzle games rolled into one superb, pseudo-3D package.

A Day in the Woods is a sliding puzzle adventure from Retro Epic that stars none other than Little Red Riding Hood. It's a simple game built around simple, classic puzzle ideas, but it's lengthy and challenging enough to provide an afternoon of brilliant entertainment. Also, one look at the game and you'll absolutely fall in love with the visual style!

In each level of Robot Unlock, your goal is to program a path for your Executor robot to travel around a series of command tiles that alter the robot's stored memory. It's very much like SpaceChem and similar logic/programming puzzle games, only in this little game, you'll be using math more than you'd expect!

Don't be replaced by a robot! Just learn to program robots! Then send them on tasks involving crates, bombs, explosions and junk food in this free logic/programming puzzle game. Pragmatica is a smart game in the vein of SpaceChem and The Codex of Alchemical Engineering.

The creator of The Codex of Alchemical Engineering and Bureau of Steam Engineering (not to mention the grandaddy of Minecraft, Infiniminer) is back with a full-fledged indie game ready to provide a serious logic puzzle challenge. SpaceChem is anything but simple, anything but easy, and one of the most satisfying puzzle games released. If you can solve its challenges, that is. SpaceChem is a game you'll spend a few minutes learning but weeks trying to master, and its 50+ levels are more than enough to strain your poor brain matter more than it's been strained in quite some time.

Puzzle Dimension is a great-looking and extremely well-made 3D puzzle game from Doctor Entertainment. Your goal is to collect the sunflowers on each level. Roll the satisfyingly-solid stone block across the floating tiles, leaping over single-spaced gaps when necessary, and touch each flower to nab it. Now, factor in ice, vanishing blocks, and loads of other ingenious puzzle contraptions and you've got a satisfying and challenging game that never seems to get old!