Play free puzzles, online games to make you think outside the box, games that require logical thinking, brain exercise games online for PC, Mac desktop, laptop, notebook, tablet, iPad, mobile phone. Cool strategy games, fun new brain-teaser games for kids (girls & boys), teens to play now, no download.
Free Games for Children, Fun Kids' Games
Sponsored Links
Top Games
Sponsored Links
Top Games by Country

Online Puzzle Games that Make You Think

Rating: 7.4/10 - 291279 votes

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

Play hard puzzles, interactive problem solving games, challenging thinking games that involve and help to promote and improve critical thinking, creative / analytical thinking skills. Find physics-based games for the school classroom as a fun science lesson reinforcement, and to play at home with your best friends and family members.

Brain Teaser Puzzles 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Best-Rated 1 2

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.

Play this Game

Tetris Master is a classic-style falling block puzzler where your goal is to keep your tower as low as possible by creating and eliminating full ‘lines’ of blocks that reach across the width of game grid. This is a cool retro version of the iconic arcade title, and requires quick reaction speed, good concentration levels, and crafty decision making under pressure. Are you ready to make your mark on the undisputed universal block building puzzle?

Play this Game

Mine Solver is a straight-forward yet challenging, maze-based, brainteaser puzzle game where you must logically push all special blue marble gem stones (jewels) onto outlined target areas in order to progress. The catch is that one wrong move could result in a gem becoming ‘unmovable’ in a corner of the narrow, confined maze areas.

Good logic and analytical thinking skills are extremely important here; you must strategically plan out your moves. Trial and error also plays a big part in overall success. Ok Mine Solver, let's see your problem-solving skills in action!

Play this Game

Test your cognitive abilities with Brain Builder, a fun, fast-paced, point-and-click brain training game for kids, teens, and grownups where you take on 16 different, 1-minute, mini-puzzle activities. With 16 different brain building exercises - from math addition and subtraction problems to analytical and recognition-based puzzles, this game provides is a good exercise of your cognitive skills (for example - visual awareness, attention, analysis, evaluation and reasoning, processing speed, flexibility skills), your hand-eye coordination and reaction speed, and general problem-solving ability under pressure. Can you make it all the way to the end?

Play this Game

Lever Physics is a challenging, math, physics and equilibrium-based game for upper elementary school / middle school students, high school teens and grownups where you must place and balance weights (fun items and characters) on a ‘seesaw-style’ beam connected to the ground by a pivot (fulcrum). Playing against the clock, you must place any available weights onto the lever (beam), and try to keep it perfectly balanced in the middle.

Some quick physics revision: A lever is a simple mechanical device which consists of a beam or stick or rod, and helps to lift weights with less effort. To be effective (as a lever), it must have a support to pivot on. This pivot is called a fulcrum. Levers can then be used to exert a large force over a small distance at one end of a structure by exerting only a small force over a greater distance at the other end of the same structure (beam). (Physics teachers - Brief correction welcome here if needed..!)

The Law of Equilibrium: A lever is in equilibrium when "the load" and "the effort" balance each other. The effort (weight) multiplied by its distance from the fulcrum = the load (weight) multiplied by its distance from the fulcrum. This law of equilibrium is true for all classes of levers.

For example, 2 pounds of effort exerted 4 feet from the fulcrum will balance 8 pounds located 1 foot on the other side of fulcrum. This effort times (multiplied by) distance about the fulcrum is the "Torque" (rotational force).

Back to Lever Physics Flash game!: Don't be fooled by the fun and playful imagery in this load balancing brain-teaser! It is a tricky, analytical thinking puzzle and logic problem solving challenge that requires good observation skills and hard thinking combined with mathematical and engineering solutions.

This interactive, point-and-click activity allows some trial and error (by quickly placing, removing and re-positioning weights) but you definitely cannot delay your decisions for long as the clock is ticking fast! Ok Balancing Master, can you ‘lever’ yourself to the top of the class?

Play this Game

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!

Play this Game

Are you ready for a really cool and creative thinking puzzler? Open your mind, and prepare to think outside the box in Pyjaman!

By day, he's a normal boy… But by night, he's Pyjaman – the problem-solving superhero that protects people from ghastly nightmares!

Pyjaman is a very challenging, creative thinking-based adventure game for upper elementary students through high school teens where you must utilize clever problem-solving skills to make your way through each cene. Set in a quirky, animated, night-time environment, Pyjaman's pursues the noble cause of ridding the world of nightmares, and replacing them with peaceful, happy dreams! With your help, Pyjaman progresses through each scenario when you make a special combination of point and click actions in a specific order to solve that level.

This fun, cute and interactive brain-teaser puzzle provides a good, stern exercise of your imagination, and your ability to think outside of the box. Each scenario poses a tricky problem-solving test; you must analyze the objects and characters, and then try to figure out the best way to use them to your advantage. As well as requiring sound cognitive abilities, visual skills, deep concentration, smart strategic planning and more, you must also use fast and tactful mouse clicking. This is problem-solving at its creative best – Can you rise to the challenge?

Play this Game

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!

Play this Game

Homescapes is a visual puzzle game playable on mobile phone, tablet, notebook, laptop and desktop PC. It is an adventure puzzle game where you are a middle-aged man trying to rescue your wife. To rescue your wife you need to get past a series of traps, which get very tricky after the first few levels. One wrong move could cost you your life and your wife could be trapped forever. Make sure you make the right decision every time!

Play this Game

Skills required: This interactive, problem-solving puzzler requires good analytical thinking, strategic planning, and determination  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.

Play this Game

Collect donuts by changing the gravity field or your Donutosaur's shape, also use the help of it's friends who can pull, push and destroy objects in this fun physics-based, problem-solving puzzler playable on mobile phone, tablet, notebook, laptop and desktop PC. Donutosaur is a visual puzzle where you need to feed your character and collect as many stars as you can to get the top score.

Skills required: This tricky online brain teaser game requires problem solving skills and desire to carefully study the environment, visualize scenarios (to predict which way the objects will roll or move), and to think outside of the box when necessary. Good strategy, analytical thinking skills are essential.

Play this Game

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!

Play this Game

Interact with the game environment in order to guide a slice of bread into the toaster whilst picking up cheese with the help of many objects in the kitchen in this fun, physics-based puzzle game! Bread Pit is a multi-level brain teaser where you must remove obstacles and alter the play area to complete each level! Playable on mobile phone, tablet, notebook, laptop and desktop PC.

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 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!

Play this Game

Play a 1-level, platform-based, judgment and survival game where you must repeatedly create the perfect length of bridge in order to move an eccentric top hat hero from platform to platform! Stick Freak is a very-challenging, interactive visual puzzle game where you must methodically create mini-bridges that ensure that your hero finishes up safely on the next platform! Your quirky main character only moves when a bridge is laid – but if your construction is too long or too short, he's in for a great big fall!

Skills required: Playable on mobile phone, tablet, notebook, laptop and desktop PC, this fun ‘repeat play’ brain teaser requires your sharpest judgment and problem-solving skills. Creating the ideal bridge each time is quite tricky – especially when the distance between platforms varies from jump to jump. Trial and error is also very important as you become used to the bridge-making action.

Play this Game

Play a challenging, match 3 jewel-swapping game with different missions! Jungle Temple Blast 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 targets depending on what your mission is in order to progress to the next level.

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.

Play this Game

Play a challenging visual puzzle and color coordination game: Collect all the colors of the ‘prism’ by combining the same blocks together in this sliding tile-based puzzle game! Ancient 2048 is an addicting, online brain teaser game where you must merge matching tiles together to unlock new bigger numbers – with the ultimate goal of getting to 2048. Playable on most mobile phone, tablet, notebook, laptop and desktop browsers, you must methodically slide the tiles around the 4X4 grid, ‘doubling-up’ the numbers along the way.

Reasons to play this tricky problem-solving game: Fans of 2048 (the sliding-tile number game that has been played by millions of gamers since its launch in 2014) should enjoy this quirky twist on the familiar gameplay. Test and exercise your analytical thinking skills, focus, concentration, and problem busting determination.

Play this Game

A good game for fans of multi-level visual puzzles! Link Line Puzzle is a challenging, interactive brain exercise. This multi-level puzzle game is for older elementary school through high school age students (and grownups) where you must link all of the blocks using only one line.

Playable on Android mobile phone, tablet, notebook, laptop and PC. This engaging, problem-solving game and addicting brain teaser offers a whopping 800 levels to keep you occupied! Sharp concentration and observation skills are required, as well as good analytical and creative thinking acumen; The ability to see the ‘bigger picture’ is essential. The willingness and determination to use lots of ‘trial and error’ attempts to find a successful solution is key (You won't complete each level in one attempt, and must learn from unsuccessful efforts.) Enjoy!

Play this Game

XO Wars is a fun and fast online Tic-Tac-Toe game where you play against the computer in an ‘Easy’ or ‘Hard’ difficulty level. In this animated Flash puzzle game version of the classic ‘pen and paper’ doodling game also known as ‘Xs and Os’ or ‘Naughts and Crosses’, your aim is to place three blue ‘O’ marks in a horizontal, vertical, or diagonal row on the 3X3 space grid. Naturally, you must also block your opponent from making a ‘three-in-a-row’ combination with his red X marks.

Skills required include accurate mouse clicking, simple logic, and the determination to outwit your computer opponent. Patience and perseverance also play a part, as there are plenty of "Tie games" in Tic-Tac-Toe, and you often need to wait for your PC opponent to make a mistake in order to pounce for victory. Enjoy the fun action!

Play this Game

The Onomastica is a very interesting platform adventure running game with a cool, linguistics twist. Playing the role of an acrobatic running and jumping character, you must leap across platforms and ledges made up of different words and letters. These interchangeable block words and letter fragments can be pushed together and manipulated to form new words which alter the game environment in a really clever way. For example – you might have to push the letters E-R toward the end of L-A-D-D – and suddenly, the completed word transforms into a LADDER that you can climb to get to the next ledge!

Reasons to play this challenging thinking game: Fans of quirky, alternative, highly interactive and thought-provoking puzzle games and brain teasers are in for a treat! Exercise your logical and analytical thinking skills, problem solving stamina levels, and your vocabulary range as you attempt to create solutions with the available letters. Stimulate your observation and reaction skills too - Amid the fun word-play, you still have to run and jump tactfully and accurately.

Best strategy to win: You need to tap into your ability to ‘think outside of the box’, and rely on your puzzle-busting determination to go deep into this creative and difficult Flash-based game. Sharp keyboard skills are also important as you attempt to join separate words and letter groupings together! Enjoy the fun word-play action!

Educational note: The name of the game ‘Onomastica’, comes from the Greek term ‘onomastics’ which is a branch of linguistic study that focuses on names and people.

Play this Game

Fly Tangle 3 is a very-challenging, interactive visual puzzle game. In each tricky, timed level, you must untangle a web of buzzing flies that have got their flight lines all crisscrossed and overlapping each other! Utilizing good logic and analytical thinking skills, you must carefully maneuver the flies until their lines are all completely free from each other!

Reasons to play this hard, visual brain teaser game: This is a good fun problem-solving and visual skills-based game for children and adults alike. Exercise your analytical thinking skills, strategic planning and hand-eye coordination as you work hard to untangle the complex web of flies!

Strategy to win: High concentration levels, good strategy, problem-solving determination and tenacity are all key attributes for success here. Task completion speed is also very important; you must score at least some points to progress!

Play this Game

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.

Play this Game

Christmas Bugs is a very tricky, visual brain teaser puzzle game that could well remind you of trying to untangle the Christmas tree lights from last year! In each challenging and timed level (of 24 increasingly-difficult levels), you must untangle a web of buzzing bugs (large-eyed flies) that have gotten their lines overlapped and crisscrossed! Can you carefully maneuver the flies until all of their lines are free from crossing over each other?

Reasons to play this hard, visual problem-solving game: As well as being a good fun, family-friendly activity online at home over the holidays, this game is also a hard, interactive skill-based game for younger children, teens and grownups to play year-round.

Test your patience and exercise your focus & concentration levels, analytical thinking skills, strategy planning ability, hand-eye coordination, and problem-solving determination and persistence as you attempt to untangle the complex web of floating bugs! Brain and reaction speed are also important here as you must score at least some points to progress to a higher level. Happy untangling!

Play this Game

Trio Tic Tac Toe is a fun, tough and addicting X and O game to play against the computer in 8 different difficulty levels, or with a friend in 2 Player mode. Here, each player is limited to just three pieces, and must continue to move these pieces around the grid while trying to score three in a row or thwart their opponent. Tic Tac Toe online has never been so tricky!

Reasons to play this innovative version of Tic Tac Toe: With a maximum of 6 filled spaces on the grid at any one time, this cool online version demands a lot more interesting tactical play compared to the classic Tic Tac Toe format. Young and older players alike, and experienced strategy puzzle aficionados should enjoy the challenging action here. Can you become an expert Tic Tac Toe player?

Strategy to win: Good analytical thinking skills are very important here, especially if taking on one of the more difficult computer levels. This is a much more tactical thinking-based version of Tic Tac Toe than versions you may have played before. Instead of looking to score three in a row with the knowledge that you may have an unlimited number of Xs or Os to use, here you must be more forward-thinking and cautious with your moves. You have to be more defensive-minded also - not to open up an extra space for your opponent (computer or friend) to exploit if you are removing one of your earlier moves.

Play this Game

Brain Teaser Puzzles 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Best-Rated 1 2