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 - 96725 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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Prepare to ascend to the heights of physics puzzle-busting success as you take on a fun ‘Wild West-themed’ problem solving brain-teaser (mainly for middle to high school age students). Amigo Pancho 3: Sheriff Sancho is a highly enjoyable and stimulating gravity-based game where you must quickly and carefully alter the environment in order to safely guide an eccentric officer of the law out of a deep ravine (canyon)! Sancho needs to ascend through each level by clutching onto rising helium-filled balloons, and your job is to clear a path for Sancho to the top of the game screen using a combination of good strategic planning and swift mouse clicking. The catch is that there are numerous dangerous obstacles and hindrances in poor Sancho’s way - including missile-firing snakes, jagged cliff edges, narrow passageways, and more.

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Can you help prevent a major heist from occurring? The Vault Job is a fun brain-teasing physics-based puzzle for kids that demands your full attention. The vault door is open and the greedy burglars are on the prowl trying to steal the precious treasures. Your mission in this skill-based game is to help the Good Guys close the door quickly before those dishonest thieves steal everything. The circular vault door is at the top of the screen, and the vault is in the bottom right corner. You have to remove all of the obstacles that are obstructing the path of the vault door getting to the vault. Roll, swing and bounce the vault door into place and firmly lock the vault. See how far you get, and send those intruders packing!

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Steep Dive Airmail is a fun and challenging "point, drag and click"-based puzzle game for kids & teens where you must carefully plan out the flight path of a small aircraft so that it collects all of the loose mail along its route. Using your analytical thinking skills with good strategy and timing, you must ensure that your plane flies safely across the game screen while coming into contact with any awkwardly-positioned mail. Before take-off, you manually set the dotted flight trajectory of your aircraft so that it enables you to reach each piece of mail in that level while avoiding other flying aircraft, hot air balloons and rockets.

This stimulating brain teaser challenge should prove a good fun test for fans of interactive problem-solving activities, logic and creative engineering games online. The air traffic control tower may just have found itself a new star!

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The Other Half 2 is a challenging, platform adventure game and multilevel physics-based, brainteaser puzzle for older kids, teens and grownups where you must guide a small stick figure character and his identical ‘reflection’ through a series of tricky ledge and obstacle-filled levels. Featuring 24 progressively-difficult challenges that require plenty of thought and smart strategy, you must carefully leap from platform to platform, discover invisible objects, use teleport devices to your advantage, combine the skills of the mirror-image characters, and more!

Strategy / skills required: Utilize fast reactions, good observation and memory skills, a cool head, sharp analytical thinking and creative engineering to find a solution to each tricky puzzle level. Some levels feature invisible ledges that you can only view for a split second, so your perception and picture memory skills really need to be accurate.

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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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Gravity Grid is a challenging online puzzle game where you have to match up sets of 3 colored blocks by flipping or rotating a chess board-style grid. In each level, there are jumbled-up groups of 3 colored blocks on a square game grid. You have to use your knowledge of gravity to figure out the correct way to flip the grid so that the colors match up. The problem is, you only have a certain number of moves to do this.

The grid can be moved 90 degrees to the left or right, or flipped upside-down 180 degrees. You have to choose the correct move that will connect the same-colored blocks together. Once you have all three of the same blocks touching each other horizontally or vertically, they disappear and you can progress. The levels increase in difficulty, with more groups of colored blocks being introduced.

This problem-solving activity will really test and exercise both your observational and logical thinking skills. You’ll also need to display good strategic planning abilities to figure out a solution to match up the different colors. Think you’ve got the eye and mind to master this tricky brain-teaser? Ok then Gravity Genius, bring it on!

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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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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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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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Play a challenging environment alteration, interactive puzzle game where you must strategically control large bodies of water in order to keep baby whales hydrated and palm trees dry! Playable on Android and iOS mobile phone, tablet, laptop, notebook, or desktop PC, Baby Whale Rescue is a stimulating and innovative, engineering-based, problem solving game where you must remove and add blocks to the play area, and methodically control the movement of large pools of water in order to satisfy certain in-game rules. To pass a level (there are 27 increasingly-difficult tasks in total), water must be making contact with every baby whale's platform while all palm tree platforms must be completely free from water! This is made trickier by movable wooden crate obstacles, potentially confusing water teleporting chutes, and more complex hindrances as you progress!

This fun, multi-level, HTML5-based, engineering brain teaser and problem-solving 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. In order to successfully complete each water flow puzzle, logical and analytical thinking must be combined with common sense problem-solving, creative engineering, great determination, and your willingness to use trial and error to your advantage.

Controls: Simply mouse-click or finger tap on a wooden box to remove it from the play area. You can add previously-removed wooden boxes to dry areas of the grid by simply clicking or tapping on that area. Click or touch on a tap / faucet to switch the water pool to flow into the adjacent grid area. If you find a level very tough to solve, and want to re-start the level, simply click or tap on the circular arrow icon at the top of the play area.

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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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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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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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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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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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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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Test your thinking speed, lexicon and spelling skills against the clock in this fun and educational word-forming puzzle & brainteaser game! Playable on mobile phone, tablet, laptop, notebook and desktop PC, Word Candy is a challenging and enjoyable word scramble quiz game for kids, teens and grownups where you must form valid, recognized words of three or more letters from a set of 6 jumbled up letters against the clock. Each level has a target number of words that you must create before the 2.5 minute clock runs out!

This online, HTML5-based, anagram / word puzzle game should work on iOS and Android devices as well as most web browsers for PC / Mac. This could be a good exercise for improving your analytical thinking skills, spelling, and general vocabulary as you must methodically and creatively form quick-fire words from the 6 base letters at the bottom of the play area. While the linguistic and analytical sides of the game are important, a sense of urgency and quick reactions also come into play as you must try to beat the countdown. 

Tip: Look at the candy pictures at the top of the play area – each candy sweet represents a possible word that you could make from the available letters below. Clue: The number of colors in each candy corresponds to how many letters are in the hidden word!

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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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