Play free brain teasers, online games, puzzles for free, no download: Brain teaser PC games, fun problem solving games that require thought, that make you think outside the box. Mind games for kids (girls and boys), teens, adults, seniors. Cool new strategy games for PC, brain teaser flash games for the family.
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Play Brain Teaser Online Games / Puzzles Online

Rating: 7.4/10 - 96709 votes

Play fun and interesting logic games and online puzzles that require thought, discipline and determination, and encourage you to think outside the box. Find problem solving games and brain teaser activities for elementary school, middle and high school students, adults & seniors to enjoy and play now online.

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Play an addicting and challenging brain-teaser, disc swapping and matching-based puzzle game online! Bunch is a stimulating, interactive, multilevel, visual puzzle game for kids and teens that combines color coordination skills, observation skills and problem solving determination. With two distinct game modes, you must swap colored discs around a confined game grid, creating as many matches of three or more discs as you can.

Reasons to play this challenging brain-teaser game: Fans of classic match-3 games such as Candy Crush should enjoy the simple action here. Test and exercise your reactions and reflexes against the clock in classic mode, or give your analytical thinking skills a more thorough examination in Puzzle mode.

Read the introductory instructions to the mode you play. Depending on the mode, you might have to be more aggressive and quick in your swapping and matching. You need to focus hard on the environment, searching for possible swaps and matches. This game requires great stamina and determination to progress high into the levels.

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Get ready for a mind-melting, head-scratching, time-traveling adventure that will get you thinking from back to front! Timebot is a fun and unusual robot puzzle game for older kids and teens where you have to unlock doors, and escape each level by sending duplicate versions of your own little drone robot back in time to perform various tasks! You have to strategically plot your route through each level by replicating your robot’s movements using identical, regenerated versions of itself!

This futuristic brain-teaser is a true test of your problem solving skills, as you have to figure out a cyclical solution that will help your drone robot complete each challenging level. Good strategy planning, time management, quick reactions and fast fingers are called into play, as you have to maneuver your original robot to the exit before time runs out. Thinking logically and methodically when under pressure is the key, but remember - your timing has to be perfect. Happy duplicating!

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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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Play a challenging, match 3 jewel-swapping game against the clock! Jewel Jungle is an interactive, multi-level matching puzzle where you must complete specific matching tasks by swapping jewels around in a grid so that they line up in horizontal or vertical groups of three or more. Playable on mobile phone, tablet, notebook, laptop and desktop PC, you must hit specific points targets or create a set number of matching groups before the timer runs out.

Skills required: As in many match 3 grid puzzle games inspired by the Candy Crush phenomenon, you must utilize fast reactions, hand-eye coordination, problem solving skills, shrewd observation, and dogged determination in order to succeed. Due to the different level types and fluctuating time limits, you need to adapt your strategy each time you take on the grid.

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Line Bounder is a challenging, old school, turn-based strategy game against the computer where your objective is to reach your designated ‘goal area’ by drawing lines across a neon-style grid. The catch is that your PC opponent has its own target to reach, and you must try to outfox him by strategically drawing lines and creating a unique pathway to your goal area. Much like the copy-book game ‘Dots’, you can use existing lines as checkpoints that allow you to continue your line-drawing turn, and make multiple moves in one go!

Skills required: This stimulating and addicting logic and strategy puzzle game requires a blend of smart analytical thinking, strategic planning, creative engineering, determined problem-solving skills, and the ability to make calculated moves that further your position while blocking your opponent's route. Making moves quickly and carelessly will almost certainly result in defeat. Take your time, and try to figure out the optimal move each time it's your turn to draw a line.

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Sharp logical thinking skills required! Jelly Alien is a "doozy" of a physics-based puzzle game where you have to combine good strategic planning & prediction skills, creative engineering skills and swift mouse movements in order to unite several squidgy, little purple gelatinous aliens into one large body! These friendly extra-terrestrial invaders have become separated by large distances, tricky obstacles, and an unforgiving landscape - and you must don your thinking cap to figure out a way to somehow bring them together in each challenging level. You play the role of the Game Environment Changer, and must use a clever combination of cutting actions, gravity, and the game terrain to create pathways, bridges, and routes for the blobby aliens to join together by cutting wooden objects and ropes. However, it’s not all plain sailing as you have to avoid the dastardly ‘Evil Aliens’ who try to scupper your plans at every turn!

This addicting and surprisingly-tricky online brain teaser activity required plenty of patience and trial and error, and tests your observation skills and ability to figure out a logical solution to each problem. You cannot directly control the movement of the purple aliens, so you have to resort to outside influences – mainly your own cutting tool – in order to move and unite the little guys. In this fun problem solving exercise, your wood and rope-cutting swipes must be tactful as well as accurate! The difficulty of some of the later levels could definitely pose a stern test for some seasoned brain game veterans, while younger gamers should enjoy the immersive interactive action. Happy blob work!

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Footprints is a very challenging yet relaxing, multi-level, point-and-click puzzle game for older kids and adults where you must navigate (step-by-step) through a series of stepping stone maze-like grids. The catch here is that you can only use each individual tile of the grid once as you find a successful route and pathway to the Green Exit Tile.

This very interesting, problem-solving brain teaser activity for kids, teens and adults requires good analytical thinking skills, smart strategy, and patience to carefully seek and find a solution to each increasingly-complex puzzle. Deep thinkers and board game enthusiasts should enjoy the "route plotting" game play combined with the simple mouse-only controls. Learning from your mistakes (trial and error) play a big part toward solving any tricky puzzle game, and Footprints is no different.

The ambient background soundtrack also adds to the distinctive atmosphere and feel of the game. Are you ready to leave your ‘footprint’ on this challenge?

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Pou Adventure Time is a challenging, interactive, physics-based puzzle game for kids and teens where you must interact with the game screen in order to unite two quirky alien blob characters! Tilt platforms, maneuver obstacles, remove hindrances, position teleport devices, and generally do whatever it takes to ensure the male Pou character comes into contact with his beloved female counterpart!

Skills required: Inspired by the wildly popular ‘Pou’ mobile app, this cool, multi-level, interactive brain teaser requires tactful mouse control, smart analytical thinking skills, a desire for problem solving, good anticipation skills, and the ability to see the ‘bigger picture’ when planning your tactics for each level (There are 30 increasingly-difficult levels in total). Trial and error also comes into play – You may need multiple attempts to complete a level, and must learn from your mistakes as you progress.

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Fans of challenging, interactive, physics-based brain-teasers should enjoy this fun exercise played against the clock: Figure Shaper is a demanding, multi-level, physics puzzle game where you must carefully and cleverly change the shape of green block characters in order to guide one of them to the Finish Gate in each level (through falling, rolling, tumbling, or being dragged).

Your analytical thinking and creative engineering problem-solving skills really need to be sharp here. Good focus and concentration levels combined with fast mouse control and reactions are also key abilities required as you attempt to quickly alter state of the characters and game environment to your advantage. Happy shape-shifting!

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An interactive sliding puzzle game that requires focus, quick thinking, creative design skills, strategy, and lots of determination under pressure. Create a viable electricity pipe channel (connection) between the two electric glowing sources, against the clock! Connection is a challenging online visual puzzle game where you must methodically re-arrange (slide) jumbled tiles on a large grid in order to create a continuous pipeline where electricity flows freely from the start to the end point. Your initial problem is that the various corner pieces and straight pipe tiles are positioned randomly around the huge game grid, making pipe construction tricky and time-consuming! And then, to keep the clock running, you must continue to generate electricity via creating further successful connections!

This addicting maze-like, brain-teaser game provides a good fun exercise and test of your concentration levels, observation skills, quick reactions, and love of problem solving as you attempt to pinpoint the various tiles (square pieces) needed to complete your pipeline, and then slide them into position as quickly as you can. Swapping tiles randomly around at speed is of no use if you don’t have a coherent, logical plan to join up the electricity line. The overall ability to step back momentarily, to review and see the bigger picture, and then react urgently is essential here as it is in many real life situations everyday. Now, are you ready to take on this electrifying task?

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Push cute animals toward an exit door by removing stone obstacles and altering the game environment with tactful and accurate mouse clicking! Zoo Escape is a cool, multi-level, physics and timing-based, problem-solving puzzle where you must help motionless zoo animals to ‘escape-the-level’ by pushing, propelling and guiding them toward the exit. Your principle action here is clicking to remove stone blockades – which causes objects to fall and subsequent chain reactions that (hopefully) push the animals to their Exit Door.

Skills required: This fun yet challenging, interactive point-and-click brain teaser game requires tactful mouse clicking, good coordination and anticipation skills, shrewd analytical thinking and problem-solving determination. Some later levels require great patience, stamina, and the key ability to learn from your mistakes (through good old trial and error).

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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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Meet Biff and Baff – two brightly-colored rolling balls that have to use their own eccentric brand of teamwork in order to navigate through a series of tricky platform-based mazes. Biff and Baff Rolling is a fun and refreshingly-simple arcade puzzle game where you have to guide these two cute little spheres to a Finish Area by utilizing their unique individual attributes, and create a pathway through each challenging (and very narrow) maze. Biff (the blue ball) can collect keys and unlock doors, while Baff (the red ball) can open these doors and collect point-scoring stars. By combining the skills of both Biff and Baff, you can switch between the two, and safely maneuver them through each increasingly difficult puzzle. Be very careful however! Each level is littered with extremely narrow ledges, and plenty of obstacles and traps!

This brilliantly-conceived rolling ball game requires some acute logical thinking, and will test your multitasking skills as you have switch your control of Biff and Baff in order to complete various different tasks in each level. Creative vision and strategic planning is very important as you embark on a journey that champions the virtues of teamwork and cooperation. Both balls are very sensitive to movement, so keeping a steady hand is also a vital ingredient. One tiny slip; and either of the little guys could fall off the edge, and plummet into the abyss below! Ok Maze Master, it’s time to show us the very meaning of teamwork! Happy cooperation!

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Drag your mouse or finger to create adjacent number combinations that add up to 10! In Connect 10, you must combine simple math addition with sharp analytical thinking skills and grid-based strategic planning. This is a fast-paced, interactive and addicting, numbers-based puzzle game and online brain teaser activity (for elementary school age kids, middle and high school students and adults alike) where you must highlight groups of adjacent digits that exactly add up to 10. Working against the clock, you must create and eliminate as many groups of numbers as you can (the combination / group can have as many numbers in it as you like as long as the sum of those digits is 10 - For example, 4 + 3 + 0 + 1 + 2).

You complete a level when you clear the grid, or there are no possible further number 10 combination options remaining. Playable on Android & iOS mobile phone, tablet, laptop, notebook, and desktop PC, there are three levels in total. You begin Level 1 with 10 minutes on the clock, with less time to complete your task in Levels 2 and 3.

This online, HTML5-based, math addition puzzle arcade 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. Skills required include sharp analytical thinking and visual cognition as you attempt to pick out groups of numbers that add up to 10 and remember possible subsequent moves. A sense of urgency, quick thinking and fast reflexes are also important as you are play against the clock. Strategic decision making also comes into play as you have the option of tilting the game grid to jumble the numbers around.

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Use problem-solving skills and good strategy to keep a cute pig from escaping in this challenging, online blockade-building puzzle game! Playable on mobile, tablet, laptop, notebook, and desktop PC, Block The Pig is a straight-forward yet tricky, turn-based brain teaser game for kids & teens where you must strategically place hexagonal blocks onto a game grid in order to prevent a curious little piglet from wandering off out of the play area. Your first three blocks are ‘free’, but after that, the little piggy moves one space towards an exit each time you place a block onto the grid. Your job is to methodically cut off all of his possible escape routes with well-placed blockades!

This online, HTML5, turn-based puzzle game should work on iOS and Android devices as well as most web browsers for PC & Mac (The game currently does not work on IE11 but should work for you on Chrome, Safari, Firefox, and Microsoft Edge).

Test and exercise your problem-solving determination, logical and analytical thinking skills to figure out where the immediate chance of escape lies! Patience, stamina and a willingness for trial and error also come into play – especially as this is a one life / repeat-play game where one pig escape results in ‘Game over’, and you have to start back at the first level! Keep trying to go as far as you can with each new attempt! 

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Re-arrange blocks on a grid to reveal the hidden treasure! Dig It is a tricky, visual brainteaser puzzle where you must reveal a hidden treasure chest by re-sorting Tetris-style blocks within a tight grid. The treasure begins each level fully or partially covered by one or more of the blocks. You must figure out a way to flip, rotate, and re-position the blocks so that the chest becomes fully visible. The catch is that there is limited spare space for the blocks to be moved to!

This challenging, interactive problem-solving activity for older kids, teens, and grownups provides a good test and exercise of your analytical thinking skills, focus, concentration, prediction & strategy skills combined with good-old problem-busting determination and patience. Trial and error is important here as you try to find out the correct block arrangement in each level. Happy block shifting!

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Become a real hero, and pre-program the flight path of a rocket ship so that it rescues unfortunately stranded astronauts in this challenging, interactive, logic-based puzzle and timing game! Playable on mobile phone, tablet, laptop, notebook and desktop PC, Space Rescue is a tricky online problem-solving game for kids, teens & adults with 15 increasingly-difficult levels.

Here, you must drag and place blue dots within the play area in order to ‘plan out’ the route of your spaceship before launch. Design the trajectory of the journey so that the rocket will safely collect all of the floating astronauts in each level as it flies across the game screen (Some levels have just one astronaut to rescue, while later levels require more complex flight paths in order to rescue multiple astronauts).

This online, HTML5-based, strategy 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. As you cannot affect your spaceship after launch, good analytical thinking skills and logic, creative engineering, smart decision-making, strategic planning skills, and good judgment & timing are all very important to ensure that you optimally set your flight path and launch. Trial & error, good-old problem-solving determination and stamina all come into play as you can re-set your route following failed attempts.

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Play a fun, interactive quick-fire math game (mainly for 1st, 2nd, 3rd grade elementary school students) on your android mobile phone, iPhone, iPad, tablet, laptop, notebook, or desktop PC! SpongeBob Math is a fast-paced math problem game where you have just 3 seconds to click or tap on the correct answer to a simple addition, subtraction, or multiplication problem. 

There are three potential answers at the bottom of the play area, and you must quickly tap on the correct answer before the clock runs out! The mini math problems keep coming thick and fast, and your goal is to score as many correct answers in a row as possible before you make a mistake, or fall victim to the unforgiving 3-second clock!

This online, HTML5, quick-thinking-based, math 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. Skills required include very quick thinking, good hand-eye coordination skills, fast reaction speed, and basic knowledge of lower elementary school-level math problems (Most of the early rounds are simple addition and subtraction equations, but it gets trickier as you progress).

Expert Tip: Watch out for ‘repeat’ questions. Sometimes the game will throw up the same sum twice in a row, but jumble up the answers at the bottom of the screen! Try not to get out-numbered by this!

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Chess Puzzle Game is an online jigsaw puzzle game of 4 difficulty levels for both little kids to older teens where you have to reassemble jumbled chess-based pictures (up to 4 in total) in order to reveal the full image. This stimulating, interactive, drag-and-drop, problem solving puzzle activity provides a challenge for jigsaw juniors through to jigsaw puzzle pros, and exercises your observation and concentration skills, visual perception, and of course, your patience and determination.

Did you know? The game of chess evolved from ancient board games played thousands of years ago in Egypt, India, China, Persia and the Arabic world! It is thought that the checkered chess board, as we know it today with its light and dark squares, came from a later European version of chess.

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Play a very difficult, shape-folding, brain teaser game playable on mobile phone, tablet, laptop, notebook, or desktop PC! Logicheck is a tricky, logic-based, shape-shifting, interactive puzzle game for kids, teens and adults where you must fold (stretch or reduce in size) green shapes to fit perfectly over blue shapes by dragging circular nodes around the play area. Each of the 37 increasingly-difficult levels has a static blue shape configuration over which you must place the movable green shapes as quickly as possible. The level is only complete when there is no green shading hovering over into the white areas, and the vast majority of the blue shapes are sufficiently covered. The faster you complete the level, the more points you earn!

This interesting, HTML5-based, multi-level, logical thinking puzzle & shape folding skill game should work on iOS and Android devices as well as most web browsers for PC / Mac. Logicheck provides a stern mental test and exercise of your problem solving and analytical thinking skills, creative engineering abilities, spatial awareness, determination and willingness to use trial and error to your advantage. Patience as always is important – It may take you a while to drag the green shapes into the correct configuration, especially in later levels when the puzzles are more complex.

Controls: Move the green shapes around the play area by mouse clicking or screen tapping on the circular ‘nodes’ that cling to the corners of the green shape areas. Stretch or reduce in size to fold to the required fit (Your transparent green shape must perfectly match the blue shape underneath).  

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