Do you like a challenge?

Not satisfied when things are to easy? Are you the kind of person who needs a challenge now and then? Try one of our puzzle games! In this overview you'll find challenging puzzles, brain teasers and brain breakers, quiz games, card games, strategy board games, and many more! Test your observational skills, find ways out of locked rooms using found objects and your own ingenuity, investigate cases lke Sherlock Holmes, work out strategies for chess and card games, or play one of the many variations on Mahjong we've collected for you. These must be the most addicting computer games, because there's nothing like a good puzzle to keep your mind sharp!

We like these games:Mahjong Titans, Mahjong Dimensions, Viaduct Designer, The Smurfs Mix Up, Railroad Shunting Puzzle, Monopoly, Gimme 5 Wildlife, Dog Mahjong 2, Mahjong Gardens, Mahjong Solitaire

Gaps Solitaire
A very addicting card game, because it looks so easy to win... Finish the rows of cards sorted by suit and number from 2 to King by filling in all the blank spaces on the table with the right cards.
8 / 10
A fun strategy game. You are assigned tiles with random numbers. They can reinforce your own tiles, or seize any adjacent tiles of the other side when their own number is higher. 20 is the highest number.
8 / 10
Sometimes you will have to figure out the timing, and other times the sequence needs to be puzzled over to make all of the positive and negative orbs collide. Green orbs don't react with any other orbs.
8 / 10
The Impossible Quiz 2
Part two of this legendary game! If you thought The Impossible Quiz 1 was difficult, try this one! Beware of this quiz, because once you start you can't stop! Good luck!
8 / 10
Mahjong Chain
A combination between a connect game and Mahjong. Click away the tiles that you can combine and all the other wiles will shift downwards. When there are no more combinations left the tiles are reshuffled automatically.
8 / 10
A bejeweled game that gets more interesting because the shape of the tiles changes every level. Play away all of the coloured tiles by switching the tiles to match up the symbols they contain.
8 / 10
Office Sneakout
Pay close attention to what everybody else is paying attention to, and make your way to the door in each of the ten levels of this game to escape from the office and get down to the pub.
8 / 10
Crazy Cow
Place fences in the field to get the running cow to the barn. You will need to collect the key to the barn first by having the cow run over it.
8 / 10
Chinese Checkers 2
Play a game of checkers with two to six players against the computer on a star-shaped board. The objective is to get all of your marbles to the point of the star directly opposite the point where you start out. You can move one step, or you can jump over other marbles until with more than one jump per turn.
8 / 10
Chinese Checkers
Play checkers on a Chinese checkerboard. Play away all the pieces in as little moves as possible. It will require some planning ahead. How far can you get?
8 / 10
This is a very difficult version of tetris. This game keeps giving you exactly the Tetris blocks you don't need! Can you still manage to drag a couple of lines out of the game anyway? It is possible!
8 / 10
Cut through the pieces of wood and the ropes to get the ball to pass the star and hit the copper circle. You can't cut through brick and metal however.
8 / 10
The Innards
In this game you have to stay alive in the intestinal tract. Collect the red bloodcells and dodge the green bacteria. Collext the pills for power ups, but not every pill brings something good.
8.3 / 10
Magnetism 2
Get the metal ball to land in the pocket in Magnetism 2, the sequel to Magentism. This version looks better than the previous game.
8 / 10
Fantastic Contraption
Use all of the different tools available in this game to build a contraption that will get the ball into the area of the field marked goal.
8 / 10
The Contraption
Drag the magnets and conveyor belts and other items into the field and try to set up a contraption to get the ball into the basket. There is a time limit to finishing the levels.
8 / 10
Get the metal ball into the pocket using magnets in this fun online game.
8 / 10
Element Matching Game
Find the right chemical elements to match the descriptions. You can also read up on the properties of each group as they come by to learn more about them.
8 / 10
Periodic Table of Elements
Are you good at chemistry? Put your knowledge of the periodic table of elements to the test in this online game. Find the right element to match the given atomic mass. Can you get them all right?
7.5 / 10
SVG Solitaire
Pay solitaire built with scalable vector graphics. The perfect way to kill time at the office. Stack away the cards and empty the field.
8 / 10