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Rating: 7.4/10 - 99976 votes

Play free games that require thought, interesting logic-based puzzles that make you think outside the box, fun problem solving games and brain-teaser activities for elementary school, middle and high school students, as well as for adults & seniors to play now online.

Play hard physics-based games, interactive puzzle solving games, challenging thinking games that involve critical thinking, creative and/or analytical thinking skills. Find fun games for the school classroom or to play at home with your best friends and family members.

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Use duplicate characters and expert platform jumping skills to help a little ball to escape 15 increasingly-difficult ledge-filled levels! Little Thing is a very challenging, platform-based skill game and problem-solving puzzler where you must help a lonely green ball to reach an Escape Portal in each tricky level. As well as avoiding dangerous pits and thorny spikes, you must occasionally ‘duplicate’ this little green ball, and use the resulting duplicates to your advantage for reaching higher ledges and other tasks.

Background info: ‘Little Thing’ is a rather lonely green ball character who has been stuck alone inside these difficult, confined levels. He needs your help to escape! Luckily, he has a special power that allows him to create clones of himself that can be used as stepping stones, blockages, etc.

Reasons to play this cool & ambient arcade game: If you like hard tasks, then this could definitely be described as a thinking person's game. Exercise and test your analytical thinking and strategy skills as you carefully and methodically find the solution that allows the ‘Little Thing’ (green ball) to escape each level.

Strategy to win: Good hand-eye coordination, sharp keyboard control and reaction speed are essential skills required to succeed here. On the mental side, you must have a very high concentration level at all times to work out when best to use the duplicate copies of your central character. Trial and error / learning from your mistakes is also really important. Call on your reserves of patience, stamina and determination to get the job done!

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Merrelus is played on a board by two players (you against the computer) who take turns. The players start with three, six or nine different color stones each. To start the game, the players place their stones on any of the available circles on the board. The second part of the game begins when all stones are placed. Players now move their stones. A stone may be moved only from one circle to another along the lines.

Stones cannot be placed or moved to a slot that is already occupied. When a player forms a mill (with three stones in a row), that player can take stone from his/her any opponent that doesn't belong to a mill. If all of the opponent's stones are inside a mill, then an exception is made, and the player can take any stone of the opponent.

You win the game by bringing your opponent (the computer program) to a position where it cannot move, or by leaving the player with only two stones. Click 'Replay' to start from the beginning or 'Menu' to return to the main menu. Before you start playing, select a board from three different variants. Choose the color of your stone as well. Then click 'Play' and enjoy the game!

If this Flash-based game no longer works on IE11 on your PC / MAC, try playing on Chrome or Firefox browser.

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Forget about all that tower defending, missile launching, hoop throwing, and high-speed racing action for a while, and immerse yourself in an addicting online puzzle game that really makes you knuckle down, and think logically and creatively. Atomic Puzzle 2 is an unusual and stimulating science-based activity for young Einsteins, older kids, and brain-teaser enthusiasts of all ages where you have to eliminate all of the atoms (bright, differently colored spheres) from a complex molecular chain. Faced with a grid of colored balls connected by rubber-like links, your goal is to match & eliminate same-colored atoms (two or more) by clicking on a ‘Connector Atom’ of a different color that is linked to each of the immediate atoms you plan to remove. By taking out this Connector Atom, you cause the same-colored atoms to be pulled together, and collide, explode, and disappear! Keep repeating this process until the grid is empty.

This very interesting yet challenging problem-solving activity could be a good fit for fans of online brainteasers, chemistry-based puzzles, and molecular physics exercises in the classroom or at home with family and friends. There are very few games on the web that have such an interactive science-based premise with a dash of "match game" color and problem-solving fun thrown in for good measure! Your logical thinking skills are truly tested as you try to select the optimum connecting atom to remove in order to create a collision of same-colored atoms. The puzzles get more complex and intricate as you progress, with serious concentration, good strategic planning, dogged determination, and plenty of trial and error required. Ok Molecule Master, time to show us your scientific superpowers! Happy atom colliding!

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Think you’re the Puzzle Master? Well, think again! IsoBlock Madness is a challenging online puzzle game where you have to maneuver a ‘rolling block’ into highlighted squares on a 3D puzzle grid. On each level, you must use the grid to place the Red Block onto the Blue Squares (purplish) before the clock runs out. Sounds simple, but it isn’t! It’s a problem-solving, brain-teasing, puzzle extravaganza!

This fiercely tricky game will really help to get your mind working. You must try to find the solution using as few moves as possible. This game requires some patience and plenty of trial and error as well as an active understanding of physics and shapes. It even helps to exercise your creative engineering skills as you try to figure out which way to position the Block to get it to the part of the grid that you want. Think you can become the Master of IsoBlock Madness? Only one way to find out!

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You control the button; you control the outcome! Blockoomz 2015 is a highly interactive, challenging and explosive physics and reactions-based puzzle game. Here, you must utilize smart strategy, excellent timing and smooth mouse control to blast ‘bad guy’ pink, black and grey bombs off of the game screen while simultaneously protecting the ‘good guy’ yellow bombs from harm. As Chief Bomb Expert, you must carefully decide when and where to execute each explosion.

This highly-stimulating, point-and-click arcade game requires very good analytical problem solving and creative engineering skills as you attempt to generate sufficient momentum and interaction to knock some bombs off and out of the play area. Levels are filled with platform-style hindrances as well as bombs positioned in awkward places, so a certain amount of learning through good-old trial and error is essential. A basic understanding of the effects of physics on a "suddenly disorderly environment" is also important – For example, bombs are certain to be flying through the air!

Now, let’s see how well you remain cool, calm and collected under intense pressure in this tricky, incendiary challenge!

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Send a block home with smart block removals, shrewd strategic planning, and tactful mouse-clicking! Go Home Block 3 is a physics-based, problem-solving puzzle game for kids and teens where you must interact with the play area using your mouse, and cleverly remove obstacles in order to guide a hairy blue block to a wooden ‘Home / Exit Door’. Unfortunately, your block character cannot move of its own accord, and therefore needs your interaction skills to make its journey homeward. Featuring 20 increasingly-difficult levels, you must overcome a range of platform and ledge-based obstacles and hindrances in this ‘escape-the-level’ brain teaser challenge.

Skills required: Fast reaction and mouse-clicking skills are needed, with an emphasis on timing and pinpoint accuracy. Analytical thinking skills must be combined with focus, concentration, stamina, and determination. Some later levels require deep thought and strategy.

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Omit Orange is a fun, physics and logic-based puzzle game where you must carefully remove all of the orange blocks from the play area in 25 increasingly-difficult levels. Playable on Android mobile devices, laptops, and desktop PC, you must strategically remove all orange items while simultaneously protecting any green blocks from falling off of the game screen. Sometimes, orange blocks can simply be clicked or tapped into oblivion – but often you must remove other excess obstacles in sequence (and with good timing) in order to successfully eliminate all orange blocks from the play area!

This HTML5-based, physics-oriented brain teaser game should work on Android mobile devices as well as most web browsers for PC / Mac. Skills required include good sharp analytical thinking and problem solving skills, strategy, as well as the ability to figure out a logical solution which eliminates all orange blocks and saves green blocks from the same fate. A willingness for trial and error is also important in later levels when you are faced with more stubborn orange blocks – such as the sunglasses-wearing blocks who cannot be eliminated by clicking or tapping alone! 

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A cool, interactive, visual puzzle of 96 levels for kids, teens and grownups to test and exercise your concentration levels, strategy and analytical thinking skills, tenacity in problem solving, and overall mental stamina - at home online or in the school classroom as a physics-based reinforcement activity.

Melty is a stimulating, gravity-based, multi-level puzzle game where you must strategically flip and rotate the game screen as well as move wooden blocks so that a block of ice (highlighted with an encased yellow star) comes into contact with a red-hot (fireball) block. In each level, you must figure out a way to free up and release the prize yellow star from its ice block by reaching a fireball block, and this can only be achieved through interacting with the game grid, and maneuvering the ice-imprisoned star around the free space.

There are no time limits, or move restrictions, or fancy power-ups. This visual brain-teaser activity simply requires patience, smart logic and strategy, as well as the ability to learn from your mistakes through lots of trial and error. Let's jump right in and flip this tricky puzzle on its head!

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Ready for an intricate and absorbing puzzle, and one of our favorite games to date? Loops of Zen 3 really is a mesmerizing and extremely challenging online tile-rotating brain teaser of 35 levels that will likely keep your eyes and mind intensely occupied for hours! Suitable for older kids, high school students and grownups with a love of problem solving, your role is to rotate and manipulate the various pieces (tiles) in the game zone until you have created a series of closed loops (in this case, meaning that all circular-ended pieces share a connection body with at least one other circular-ended piece). This top quality online puzzle (with relaxing lullaby-like music in the background) requires high observation and concentration levels, creative engineering skills, logical thinking, great patience and determination, and plenty of good-old trial and error in order to succeed.

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Use ‘stopping blocks’ to control the momentum of a rolling ball, and slide it into an exit portal: Road Blocks is a very challenging, maze-based visual puzzle and problem-solving brainteaser game where you must guide a white ball to a red exit portal (like a goal) in multiple, increasingly-difficult levels. The catch is that your rolling white ball can only move horizontally or vertically around the confined grid, and can only stop by impacting with a wall or other object (manually stopping the ball is impossible!).

Reasons to play this multi-level, brain teaser puzzle: Although the game has a simple concept (move a ball around a maze toward the exit), there are number of very tricky elements to it that should prove testing for even the most seasoned visual puzzle aficionados. Each level plays as an interesting problem-solving challenge where you must carefully observe the playing field, and all levels are a stern test of your ability to figure out the correct path to the exit.

Skills needed to win: The willingness for lots of trial and error is a very important part of this game – You almost certainly won't complete each level on the first attempt. Analytical thinking skills and a well-planned strategy are called on as you visualize (predict) the ideal path to the exit portal for your rolling ball. A cool head, determination and stamina also play a major part in your success.

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Divide is an easy-to-play yet highly-stimulating, geometry-themed puzzle game where you must ‘divide’ a large wooden shape in order to form a target number of smaller pieces. The catch is that you have only allowed a set number of slicing actions to create a set number of independent wooden pieces, so you must be extremely precise with your shape-dividing skills. This head-scratching, problem-solving puzzle requires imagination, good analytical thinking skills and strategy. Accurate mouse control skills are also very important.

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Play a cute maze game, and enjoy helping a little mole to collect his delicious treats! A hungry mole needs to munch up all of the food available above ground but must be really careful not to retrace his steps! Mole: The First Hunting is a fun and challenging, interactive, maze-based puzzle game for kids & teens where you must guide a "cute" mole around a grid of tiles, collecting all of the vegetables on offer as you go, and then escape back underground to safety via an Exit hole. The catch here is that you can only use each square on the grid once – retracing your steps is not permitted!

This tricky, visual brain-teaser & fun problem-solving activity requires good concentration and analytical thinking skills, well-planned strategy, and the determination to succeed. There's no time limit, so patience is also important as you take your time to carefully figure out the ideal solution (There may be more than one solution to a level). Happy vegetable munching!

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Water Drops Waterway is a hard reaction-speed, timing and skill-based brainteaser puzzle game for older kids, teens and grownups that requires high concentration levels, very sharp hand and eye coordination and great patience. This highly interactive problem solving activity will really test your determination and perseverance.

Your role as skilled problem solver is to carefully channel a given percentage of moving water drops through the play zone toward a static pond (their required destination at the bottom or to one side of play zone). Through your expert use of super-fast mouse clicking skills, quick obstacle removal, good strategic planning and decision making, you must guide the droplets from one area of the game screen to the other. However, this is certainly no mean feat as you must contend with flame-throwing machinery, awkwardly-positioned obstacles, and other tricky hindrances along the way.

This stimulating and unusual problem solving exercise should prove a good, fun test for anyone who enjoys interactive and dynamic puzzle games, physics-based brain teasers, engineering and leadership challenges. There's an old saying that “timing is everything in life” and that mindset is very apt here. Let’s see how your timing, determination and perseverance skills match up!

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Play a very tricky, multi-level, sliding block brain teaser game on your mobile phone, tablet, notebook, laptop, or desktop PC! Free The Key is a highly-stimulating, ancient Egyptian-themed structural puzzle game and visual problem solving challenge (for elementary age students, high school teens and adults) where you must methodically move sliding blocks around a confined (chamber) grid in order to create a path to ‘free the key’ and guide the Golden Key block out through the right hand side of the play area. All 40 levels follow the same concept where the different slide-able blocks can only either be moved horizontally or vertically, and the working space between blocks is minimal!

This online, HTML5-based, sliding puzzle / maze escape-style game should work on iOS and Android devices as well as most web browsers for PC / Mac. Skills required include alert analytical thinking, common sense logic, visual problem-solving skills, creative engineering skills, great determination, patience, and a willingness for trial and error as you strive to figure out the solution to the increasingly-challenging puzzles. 

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Play a charming visual puzzle game: In Let Me Grow, you must remove and place wooden blocks in order to control the flow of water so that thirsty flowers can recover and bloom! This is a fun, engineering-based, problem-solving brain teaser for kids where you must clear pathways and create blockades on grid-based play areas in order to ensure that water reaches the daisies while avoiding contact with little village gnome characters. In Let Me Grow, you play the role of Chief Water Flow Engineer, and must use smart logic and strategy to control large bodies of water.

Reasons to play: For mobile phone, tablet, notebook, laptop or desktop PC, this entertaining brain teaser game is a good exercise of your problem-solving and analytical thinking skills. Utilize good concentration, planning and strategy skills as you work to ensure that the daisies receive irrigation while the little villager characters are simultaneously kept dry.

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Interact with the game environment in order to guide a slice of delicious salami into the paws of a hungry cat in this fun, physics-based puzzle game! Cat Around The World: Alpine Lakes is a multi-level brain teaser where you must remove obstacles and alter the play area in order to roll a piece of salami toward a motionless cat! Playable on mobile phone, tablet, notebook, laptop and desktop PC, this is a challenge where feeding a kitty cat is no certainly mean feat!

Skills required: This stimulating gravity-based puzzler requires sharp analytical thinking skills, hand-eye coordination, fast reactions, observation skills, and dogged determination. Smart decision making and problem-solving know how are key as you attempt to figure out the correct obstacle-removing sequence in each level. Trial and error is also important – You must learn from failed attempts, and adjust your strategy accordingly!

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Attention all Physics Whiz Kids – prepare for the ultimate test with Catch the Star 2 – the challenging physics-based puzzle game where you have to apply all of your knowledge of gravity and trajectory to catch all of the Stars on each level. Manipulate objects, strategically place blocks and create pathways to complete your mission of catching every gold Star! You only have a limited number of moves, so put on your creative engineering cap. This problem-solving game will help to improve your spatial awareness and hand eye co-ordination as you maneuver various objects to catch every Star in each level. Think you’ve got what it takes? Let’s reach for the Stars!

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Strikey's Revenge is a challenging, "street golf"-themed, physics-based puzzle game where you must shoot a golf ball into a waste basket in a series of 18 progressively-difficult, obstacle-filled levels (which play like a wacky game of mini golf combined with the intricate science of power, angle, and trajectory!). You play the role of Strikey, a fiery golfing prodigy, and must use his incredible skills and aiming devices to figure out the best way to engineer a solution that deflects the ball into the urban waste basket (bin) in each tricky level.

Skills required in this multilevel golf, aiming and accuracy game: Creative engineering and analytical thinking skills are very important in this environment – There are multiple ways to get the ball into the basket depending on the angle and power used in your shots. Trial and error is also part of a smart strategy as you test out how the ball reacts against the various obstacles and unusual objects in each level. Good observation skills, a steady hand, a cool head under pressure, and expert mouse control all play a part in your chances of success.

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Chronotron is a head-scratching, brain teaser puzzle platform game for older kids and teens set in a world where time travel is an essential everyday skill that you have to master! You play the role of Chronotron, the red and white little time-traveling robot who needs to navigate his way through a series of challenging platform levels. To do this Chronotron must enlist the help of and interact with identical, teleported versions of himself from the immediate past. Use the Time Pod machine (an elevator) to replicate multiple versions of yourself in order to complete various tasks such as opening doors, flipping switches, lifting boxes, and other actions that would be impossible for Chronotron to do alone as one entity.

This innovative and challenging online activity really tests your analytical thinking and problem-solving skills as you try to figure out a solution that allows all versions of the likeable little robot to successfully work together in order to complete each level. Great patience and determination is needed in order to find the solution. Try not to get your brain in a twist – Time travel can be mind-meltingly tricky at times! Ok Chronotron – let's call on past experience to solve future problems!

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For elementary school age kids through high school teens and fun puzzle-loving adults! Get your analytical thinking skills in tune and fill a container with exactly 6 liters of water to help solve a tricky puzzle that will enable your alien friend Golo to escape a cave. Golo is trapped by a large metal gate and can only escape when you place a container filled with 6 liters of water onto a special scale! The catch in Golo in the Cave is that the only containers available to you are 7-liter and 5-liter pitchers, and each time you use the nearby well to add water, it fills the either container to the very top! However, you can pour water from one container to the other, and empty the containers whenever you like. Through a combined method of math-based logic and water transfer, you must figure out the best way to end up with exactly 6 liters of water in the 7-liter jug!

Skills Required: Fans of interactive, visual and logic-based math puzzles should enjoy this stimulating, one-level brain teaser game. Golo in the Cave requires sharp analytical thinking and problem-solving skills, common sense reasoning and strategy, determination and stamina to get the puzzle solved!

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