Need a good brain work out? How about one you can take on the go with your iOS or Android? It's time to put your thinking caps on and start stretching out the only organ that named itself, because Brain Builder is here to, well, help you build your brain!

Quick, what do you get when you add 10 and 10? The answer is still 10, because 10 is Again! Never mind that that makes no mathematical or grammatical sense, because all that matters is that in 10 is Again, you've got to slide numbered tiles to make stacks that up to exactly ten. In this level pack, multiplication, division, and inversion tiles are added to the mix to make the math just a little wilder and the puzzling a little trickier.

How can you not love the number 10? Especially if we're talking about the new sliding-puzzle from iojoe! Colorful and entertaining, with a gentle learning curve, anyone in search of a good mind-twister should definitely give 10 their a-10-tion.

Is there a occupation cooler than Vampire Hunter? After seeing the exploits of Van Helsing, Buffy, Blade, Alucard and D, I'd be surprised if high-schoolers don't flock around the recruiting table at the yearly career day. However, not all of us have time for the years of intensive training that is required to spot vampires on sight. Thankfully, the University of Winconsin's Center for Game Science has developed an online training program that will focus your Vampire Vision through a combination of arcade puzzling and hidden object spotting... and it just might improve your regular vision too.

Created by Japanese math teacher Tetsuya Miyamoto in 2004, Kashikoku naru Puzzle translates literally as "A Puzzle That Makes You Smart". Hitting that exact right combination of mathematical calculation and logical reasoning, it soon became an international sensation under the name KenKen. As the story goes, "Ken" translates as Cleverness, so KenKen (or, I guess Ken^2) is Cleverness-Squared. That's an apt description for this arithmetic grid-based brainteaser. At JayIsGames, we're always on the lookout for good online versions of pen-and-paper games, and Nextoy has provided with 6 daily, devious, and easily-printable KenKen. Why? Because they Ken Ken Ken!

Ninjadoodle's Bustabrain 2 features 30 new levels of minigame puzzles to solve and 30 hidden Dice of Doom to find. Use the mouse to click or drag various items on each level. Try to beat the game in as few mouse clicks as possible. Up for another round? Then put those running shorts on your head and start exercising your brain once again!

One of these things is just like the other. One of these things, oh it belongs. Can you tell me which thing is just like the other, before I finish this song? If you just had a flashback to a kinder, gentler time of your childhood spent in hypnotic rapture before a television, take For the Twin for a spin.

Bustabrain is a series of click or drag-and-drop minigame puzzles by Ninjadoodle. Play through 39 levels of rebuses, memory games, pattern recognitions, and others. Try to beat the game using the least number of mouse clicks possible.

Word Bubbles is a word game of a different sort, exercising your brain as you devour round after round of word-guessing goodness. Enter as many words that begin with the set of letters given at the beginning. Float the numbered bubbles to the top and you'll earn a star!

Globetrotter is as simple as it gets. You're given a map and you're given a location, and you must click on where you think that location is on the map. Sure, this is easy if you're looking for New York, United States or London, England, but good luck with Tunis, Tunisia on your first go, and believe me, Australia can be trickier than you may think.

Basho Kioku is the latest puzzle game from prolific designer Yoshio Ishii. You are faced with a grid of 36 squares, and your goal is to click on each of them in turn. Each round, a random combination of these squares lights up orange, and you must choose one of them. There is no indication of which squares you've previously selected, but if you pick a square more than once, you lose a life. It's a nearly flawless koan that plays on the tension between the randomness of your choices and the solidity of your strategy.

File this one under brain training games: Math Mountain is an addictive arithmetic game wherein you climb a mountain, competing against another person or the computer, by answering math questions correctly. If you're not very good at arithmetic, Math Mountain is a fun way to practice; if you're already good, then why not give your brain some exercise?

We here at Casual Gameplay have been fans of the work Yoshio Ishii has been doing in Shockwave and Flash for several years now. He may be best known for his Neko series of games (neko means "cat" in Japanese), though he has also created some of the best Panzo games as well. His latest effort is this beautiful and delightful game that will give your brain some stimulation as you play.

Philip Lenssen was very kind to send word that he has a brand new game added to his collection of Games for the Brain. LetterMaze is a sesquipedalian game in which the player first memorizes the spelling of two long words. Next, a maze is presented within which the mouse is used to simply touch spell the words within the time limit. The game is ...

Which side are you: right-brain or left-brain dominant? While right-brain dominant people use their intuition and emotions to guide their decisions, left-brain dominant folks are more sequential and time-oriented in their approach. Perhaps you are middle-brain dominant, meaning that you vacillate between the two hemispheres when making decisions. If unsure,...