Play free online games to make you think outside the box, puzzle games that require thought & logical thinking, hard strategy games, fun online brain-teaser games for kids (girls & boys) to play now, no download. Cool top new thinking flash games for PC, Mac desktop, laptop, notebook, iPad, tablet, phone..
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Games to Make You Think Outside the Box

Rating: 7.4/10 - 94833 votes

Play free logic-based games that require thought, games that make you think outside the box, puzzles activities that involve and help to promote and improve critical thinking, analytical thinking skills in children (elementary / middle school students and high school teenagers), as well as for adults and seniors to enjoy.

Play good brainteasers, hard puzzles, challenging creative thinking games and general, interactive problem solving activities online at home with your best friends and family members. Some physics-based games may also be used by teachers in the classroom as fun science lesson reinforcement.

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Are you ready to spend hours trying to solve a classic head-scratcher puzzle for all ages based on a very simple concept? If so, get ready for a long challenge that will require you to roll up your sleeves and open your mind. Coins is a tricky and addicting brain-teaser that you will want to share with your friends and family! This is a challenging online puzzle game where you have to maneuver sets of sliding wooden discs (coins) into specific positions on a board.

The objective is pretty simple – in each level, there are a number of highlighted areas that have to be filled with the available Coins. The restriction is that a Coin can only be “moved” to a placement (position) where it touches at least two other Coins at that moment – that’s the tricky part! Your number of moves are also limited. The difficulty increases as you progress, but the simplicity of the game play makes this awesome little brain-teaser extremely addicting. There are no tricks or special moves, just good, old-fashioned problem solving. Your strategic skills planning will be tested, as you have to plan two or three moves ahead in later levels. Ok – it’s time to see if you can slide your way into the record books!

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Methodically create a jelly-like tower of inter-connected sheep, and connect your structure with the golden sheep high up or at the bottom of the play area in each level of this quirky, physics-based brain teaser! Sheep Physics is a highly-challenging and stimulating interactive puzzle game where you must cleverly use sheep building blocks to create a fluid, tower-like structure that eventually makes contact with the ‘target’ gold sheep at the top of the play area. Your carefully placed sheep act as connectors between beams (horizontal beams, columns, strutting beams and ties) in the structure!

Skills required: This slightly eccentric and creative engineering-based skill game is really a straight-forward tower construction activity at heart, and that requires an amalgamation of smart analytical thinking and problem solving skills, an appreciation of the effects of gravity on a building structure. Good judgment and anticipation of when and where your tower might be liable to fail is very important. Unleash your creative side as you come up with fun structure that work - that get your sheep tower to reach the golden sheep high up or at the bottom of the play area.

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Ready for a fun, rope-cutting physics and skill-based game? Boom Balloon is a tricky, interactive mouse-clicking puzzle game to really get your "spikes" into. Here, you must pop three helium-filled balloons in each level by successfully manipulating the game environment, and carefully freeing and guiding the balloons toward a set of spikes! You play the role of the ‘game-changer’, and have to meticulously plan out a sequence of actions and reactions in each level that results in all three balloons being mercilessly popped (no matter how cute the balloon designs are, they’ve simply got to go if you want to progress).

This challenging gravity-based brain teaser activity can prove to be a tricky test for even the most experienced of gamers. Each level requires careful analysis, logical thinking, good strategy, great patience and determination to figure out the correct course of actions that will result in the balloons’ demise. Once you are ready to set your cunning plan in motion, well-timed swipes of your computer mouse, and fast reaction skills are essential. Beginners beware – later levels feature extremely complex step-by-step solutions that can only be achieved through rigorous trial and error. We hope your enthusiasm for problem-solving doesn't take flight - Remember that only the balloons need to get ‘deflated’ here! Challenging yourself is what it's all about:) Good luck and enjoy!

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Play a highly entertaining, clever and difficult platform puzzle adventure game! Pursuit of Hat 2 is an awesome problem-solving platformer challenge where you must simply pursue and capture (make contact with) an elusive hat in each level! However, you must contend with a vast array of quirky challenges, obstacles and hindrances along your determined pursuit.

These difficulties include steep ravines, appearing and disappearing bridges, sensitive door switches, and the hat's uncanny ability to scamper away from your elastic, lumbering little character! For good measure, your quirky "chaser" character has the ability to temporarily leave limbs / body parts behind it as tools! This can be useful when opening doors and creating bridges while the body of the character continues chasing that pesky hat!

This fun and eccentric arcade game should prove a smash hit with interactive puzzle & online brain-teaser aficionados, or any platform game enthusiasts who enjoy playing games that deliver an "outside of the box" experience. Successful player requirements here include strong analytical thinking skills, good concentration and strategic planning skills, creative engineering skills, dogged determination, plenty of stamina, and good keyboard control. Is that you?

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This fun and highly-challenging interactive visual brain teaser and rotating tile puzzle (for kids, teens and adults) is playable on most mobile phone, tablet, notebook, laptop and desktop PC browsers. In Illuminate 1, test and exercise your analytical thinking skills to solve a fun yet challenging series of interactive puzzles where you must connect all the lamps on a circuit grid to the main power source (battery) in order to turn on the lights. 

Unjumble, re-arrange and connect the electrical current-carrying wire and circuit parts by clicking your mouse or tapping on the tiles to rotate the wires into favorable positions that create a connection within the circuit in order to ultimately light up / ‘illuminate’ all of the bulbs. Featuring 20 increasingly-complex levels, you must work against the clock and solve the maze-style puzzle before it's too late!

Skills required: In this fun and stimulating problem-solving game for children of elementary school age and Big Kids of all ages, you must use sharp logical and creative thinking skills, engineering skills, visual awareness, concentration, focus, common sense problem-solving, great determination and stamina to rotate tiles in order to get power to all of the lamps before the clock timer runs out. A sense or urgency and willingness for trial and error is also very important here as you imagine and try out multiple different possible routes for the power circuit to take.

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Exercise your brain, logic and analytical thinking skills in Cut It, where you must carefully slice pieces of wood into equal or as close to equal pieces (proportionate sizes by percentage). This is an interesting, slicing-based brain teaser game where kids can learn about geometry in a fun and interactive way, and is playable on iOS and Android mobile phone, tablet, laptop, notebook, or desktop PC. 

Cut It is a straight-forward, geometry-based puzzle game where you slice wood using your finger or computer mouse. Here, you have a limited number of swipes / slices to create a target number of similarly-sized wood segments in 72 increasingly-difficult levels. There are 4 difficulty levels – Very Easy, Easy, Medium, and Hard. You begin in Very Easy mode, and you must use Gold Stars earned from good performances to unlock further difficulty levels.

This online, multi-level, HTML5-based, math geometry activity and visual / logic puzzle game should work on iOS and Android devices as well as most web browsers for PC / Mac. To play the game with full screen, you may have to turn your device horizontally. Good spatial awareness, sharp analytical thinking, creative engineering skills, and common sense visual judgment skills are really important as you attempt to cut the wood into equally-sized sections. A certain knowledge of the basics  of fractions and general geometry can come in handy! A willingness for trial and error also comes into play as you are given a success rating at the end of each level – whether you have passed or failed. You can use these percentages to alter your slices in subsequent attempts.

Controls: Slice through the wood using either your computer mouse, or with a swift finger swiping action! The number next to the chainsaw icon at the top indicates how many cuts you have available, while the number next to the wood pieces in the top right corner indicates how many similarly-sized pieces of wood you must create to pass the level. 

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Piu Piu is a challenging, visual awareness-based online puzzle game for kids, teens and adults where you must combine perceptual skills with careful mouse movement to maneuver a ‘blue thing’ through a series of quirky, disorienting maze levels. The concept is very simple – Collect green shapes and avoid red shapes. However, levels increase in difficulty as you progress, with the game screen becoming partially blocked, inverted, flipped upside-down, and more.

This easy-to-play yet difficult, interactive brain-teaser game requires you to focus and interpret what you see, and exercise your visual perceptual skills and analytical thinking ability to solve the problem in each level. Peculiar level arrangements take you out of your ‘comfort zone’, and force you to concentrate hard – or risk failure!

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Solve platform puzzles by creating and controlling dummies to mimic your movements. Fancy Wizard is a clever problem-solving game and interactive platform adventure puzzle where you must use innovative strategy to guide a red-robed wizard through a series of 18 enclosed platform levels. Your wizard can perform magical feats – and his specialty is creating a team of duplicate ‘helper dummies’ (when necessary) that can perform certain key tasks such as flipping switches, distracting enemies, forming jumping pads, and more. Your job is to carefully utilize these dummies in order to ensure your wizard makes it safely through each level!

Reasons to play this quirky brain teaser: Exercise your analytical thinking and problem-solving skills as you figure out how to exploit the unique dummy-creating magic of your wizard. Think of the possibilities!

Strategy to win: Good team management and logical strategy is the key to guiding your wizard to the Exit Door in each level. Fast reactions and solid keyboard control skills also come into play. You must be patient, determined, and ready to engage in trial and error (and learn from your mistakes!). Use dummies to reach ledges that the wizard cannot, slow down other characters by forming blockades, and get them to stand guard on special switches and door-opening buttons.

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Highly-challenging, general knowledge quiz game for young global fans of movies, songs, music groups, soccer football, and geography! Wordz is a tricky, word-based ‘fill in the blanks’ brainteaser puzzle where you must fill in a blank grid with letters in order to reveal the correct answer (name). Here, you are given a specific clue / category (‘Soccer Teams’, ‘Movies & Actors’, ‘Songs & Artists’, ‘World Capitals’), and must fill in the blanks by clicking on individual letters. Correct letters fill in blank spaces on the word grid – and you must solve the puzzle before you run out of guesses!

Reasons to play: Test your general knowledge of movies, songs, music groups, geography and sport (soccer)! While you might be a soccer football enthusiast and pass the soccer levels easily – you might need help from a more experienced quiz buff to help you find answers to other topics! This game could be played as a good fun teamwork activity for all the family at home where you could try to figure out the various clues together.

How to Play: A Flash-based, word quiz and letter guessing game for notebook, laptop and desktop PC / Mac (with certain browsers). At the beginning of each level, your category is displayed above the blank grid on the left hand side of the play area. General knowledge subjects include World Capitals, Soccer Teams, Movies & Actors, and Songs & Artists. All 26 letters of the alphabet are displayed on the right hand side of the play area. Your task is to fill the blank grid with the correct letters. However, you are only allowed 3 mistakes. If you enter a fourth incorrect letter, it's game over!

Using your computer mouse or touchpad, Left Click on the letter you want to add to the word grid. If the correct answer contains this letter – it is posted in the grid. However, if the letter is not contained in the answer, you score 1 ‘mistake’ in the box below the main grid. If you successfully fill all of the letters into the grid, you progress to the next level. See how many puzzles you can solve in a row!

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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Play a hard, multi-level, sliding tile brain teaser game where you must strategically ‘create a channel’ for a ball to pass from the left hand side of the maze to the target / Goal area. Rolling Ball is a visual problem-solving, escape-style game and construction puzzle (for elementary & middle school age kids, high school teens & adults) where you must slide and rotate tiles / blocks around a confined game grid in order to engineer a pathway to move a steel ball from one side of the grid to the red ‘GOAL’ block on the opposite side. 

In each of the 60 increasingly-difficult levels, your task is to ‘unscramble’ the maze, shuffle blocks around the grid, and get the ball to the Goal area in as few ‘moves’ as possible. This is made all the more difficult because sometimes there are some trick tiles (additional channel pieces) that you don't need for that level, while sometimes blocks need to be rotated (90 degrees at a time) in order to transform them into a usable block for your channel building plans. 

This online, HTML5-based, sliding & rotating block puzzle game should work on iOS and Android devices as well as most web browsers for PC / Mac. Key problem-solving skills required here include a combination of high levels of concentration, good analytical thinking and logic skills, creative engineering and strategic planning, patience, determination, stamina and resilience to keep working towards a solution when the going seems very tough. A willingness for trial and error is important because the mazes become extremely complex as you progress further and further up the game levels. 

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Jigsaw Fantasy: This is a time-based puzzle game where you need to find pairs of matching tiles. Simply choose a number of puzzle pieces (12, 24 or 36) by moving the star with your mouse and press “go!” Remember that the bigger number you choose, the harder it will be. The whole picture will be shown to you momentarily and then you will have to unscramble it. Use your mouse to move the puzzle tiles around and put them in the correct order. You can push the “Finish Puzzle” button if you find it too hard to finish yourself. Improve your result by assembling the puzzle faster.

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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Orange Gravity 2: Level Pack is a fun and addicting, interactive ‘cut the rope-style’ game as well as a brain teasing, physics-based puzzle challenge for older kids, teens and grownups! Playing the role of a hungry little orange fruit character, you must intricately use various tethering ropes along with the effects of gravity to gobble up yellow apples, and then escape through a special hatch in each level.

Cut the rope type games have sky-rocketed in popularity over the last few years, and provide a real test of your problem-solving skills combined with your quick reactions. You must exhibit great patience, concentration, and the willingness to learn from your mistakes (as lots of trial and error is required) in order to progress. Enjoy the quirky action!

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Play an excellent, old-school board game challenge comprising 16 separate puzzles - easy, medium, hard and extremely difficult: Solo really is a fun yet challenging, 1-player, logic-based visual puzzler (for young kids through adults and seniors) that follows the rules of Peg Solitaire (also called Solo Noble and BrainVita) – a classic jumping board game similar in concept to Chinese Checkers.

The aim of the game in Solo is to reduce the number of circular pegs to just 1 solo remaining peg (Pegs are eliminated when ‘jumped over’ by other pegs – exactly the same as you would capture an opponent's piece in checkers). Solo features 16 increasingly-tricky mini-games (levels) with more pegs and fewer available grid spaces as you progress.

Skills / strategy required: Peg solitaire games are difficult problem-solving brain teaser puzzles where sharp logic and analytical thinking skills are required to find out a solution. Complete focus and concentration, great determination and stamina are essential here – You really need to be ‘in the zone’ to solve the Solo puzzles, especially in later levels. A good strategy is to take your time, and visualize a few moves ahead. There is no clock pressure, so carefully plan out your jumping moves in advance.

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Black Knight Insurrection is a challenging and stimulating, chess-based puzzle game for kids, teens and adults where you must leap around a chessboard-style grid in search of a Gold Star – always using the same (famously versatile) chess piece – the Knight! Although the game is undoubtedly built around chess principles, you really only need to know the basic moves of key chess pieces to enjoy the logic and strategy-based problem-solving here! Your task in each of the increasingly-difficult 40 levels is to collect the Gold Star, but you often have to activate switches, leap over objects, capture other chess pieces, and generally plan out your moves in advance like a true chess Grandmaster!

Black Knight Insurrection is a Flash-based, chess-themed puzzle game for notebook, laptop and desktop PC / Mac (with certain browsers). Key Control Feature: The Knight always moves in a specific ‘L-shape’. In one motion, it moves two squares horizontally and one square vertically, or two squares vertically and one square horizontally. Using your computer mouse or touchpad, Left Click on the square you want your Knight to move to. 

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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Place Tetris-style blocks into specially-designated outlines in this block-based puzzle game playable on mobile phone, tablet, notebook, laptop and desktop PC! Fancy Constructor is a challenging, multi-level, visual puzzle game for kids and teens where you must maneuver different-shaped building blocks in order to fill white-colored outlines. Blocks come in different colors, shapes and sizes.

Skills required: Like in Tetris and other construction-based brain teaser games, this interactive, problem-solving puzzler requires good analytical thinking and creative engineering skills, sharp focus and concentration, and the ability to zoom out and see the ‘bigger picture’. Good strategic planning, determination and stamina are also important as you must plan your moves in advance, and when and where to place certain troublesome blocks. Trial and error also plays a part; there is no set time limit, and you must learn from your mistakes and adjust your solutions accordingly.

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Test and exercise your visual problem-solving skills with 25 blueprint-style mazes that may look simple but prove to be extremely tricky - where swinging doors that govern each maze make reaching your destination a tough task! Open Doors is a highly-challenging, multi-level, maze and strategy-based puzzle game where you must guide a movable square to an X-shaped Exit Portal. However, each maze is filled with ‘doors’ that swing open and closed depending on which way your square hero moves. This means that each of the 25 increasingly-difficult levels presents its own mini door-opening brain teaser – and it's your job to figure out the solution that ensures the square reaches the end point!

Skills required: This quirky, interactive, visual puzzle game requires high levels of focus and concentration - especially in later levels when the brain teasing action is more complex. Smart analytical thinking, creative engineering, determined problem solving, and general multi-tasking skills all come into play as you carefully plan your route through the alternating door openings. The ability to mentally zoom out and see the ‘bigger picture’ is also very helpful.

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Play a highly-strategic version of Tic-tac-toe against a sharp computer opponent or a best friend / family member! Strategic Tic-Tac-Toe is a very good, quirky one or two-player version of the simple ‘Noughts and Crosses’ game where you must line up three Os or Xs in a row on a 3X3 grid before your opponent does. However, in this more complex version of tic-tac-toe, there are nine 3X3 grids in play at the same time! To become the champ, you must prevail in three whole grids in a row!

Skills required: This fun and challenging, interactive visual puzzle & brain teaser for kids and teens requires really good concentration, quick-fire analytical thinking skills, and fast reactions. The virtual computer opponent is not the most advanced player – but is certainly quick to capitalize on any errors that you make. Whether you are playing against the computer or in a two-player matchup against a friend, you need to be thinking ahead at all times, trying to out-maneuver your opponent through good strategy - without making glaring mistakes of your own!

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Play a retro-style, online Tic tac toe game for 1 and 2 players! Tic Tac Toe: Vegas is a simple, colorful version of the classic pen and paper game - Xs and Os, or Naughts and Crosses. Play against the computer or with a friend or family member, and be the first to get three Xs or Os in a horizontal, vertical, or diagonal row on a small 3X3 space grid.

Reasons to play this straight-forward, online puzzle game: Exercise your analytical thinking, strategy and decision making skills as you work to figure out the best way to bamboozle your opponent and get the coveted 3-in-a-row of your chosen symbol. Older players and adults can re-live their classroom days while younger players can experience the fun challenge of a quick-fire, virtual tic tac toe puzzle online.

Strategy to win: As the game grid is very small, ties are a commonplace occurrence in Tic Tac Toe. This means that concentration levels must be high at all times. You must try to come up with different strategies and approaches which might trick your opponent, and force a mistake. Accurate mouse clicking is also important!

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For those who love to grind out solutions to what may appear complex visual and structural puzzles: Gridlock is an extremely hard, multilevel, sliding block-based puzzle game and highly-stimulating, brainteaser activity for older kids, youth and grownups!

In each of the 40 increasingly-difficult levels of this really tough visual problem-solving challenge, you must unlock the puzzle, and find a way to slide the blue block through the opening on the right hand side of the confined playing grid. The catch is that each individual block can only be moved either vertically or horizontally. The solution is achieved using careful thought and methodical maneuvering of the other slide-able blocks that populate the small play area.

Skills / strategy required: Creative engineering and analytical thinking skills are very important in this tricky maze-like escape game. Each level has the same concept and purpose, but all 40 levels require very sharp focus, concentration and deep thought, and provide a stern examination and exercise of your visual problem solving ability.

Great patience and determination are also required - You need a strong temperament to intricately plan and visualize each move toward each solution, and go high into the Gridlock levels. Accept trial and error as an important ally in your quest – You very likely won't complete each level with ease, and must learn from your mistakes in order to progress (so good memory skills sure come in handy!).

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Fluffies is a fun, unusual and challenging puzzle game for young kids where you have to free up (untangle) a bunch of cute creatures from each other. This unusual brain-teaser activity should help to improve your concentration and observation skills. The Fluffies are a family of adorable, fuzzy little guys, but their Mom has to leave them alone for a little while. She attaches them together with string so that they don’t run off – but the problem is, they’ve got all tangled up with their strings crossed over (and this is not good)! 

It’s your job to help free them so that their Mom can send them off to bed. You've got to free up the Fluffies by making sure their strings don't cross each other at any angle. But be careful because the Fluffies are full of mischief and won’t make it easy for you.

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