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Memorize pi, e, and 40+ mathematical constants using the numpad path method

Match emoji cards with their word labels across 10 categories

Watch the color sequence light up, then repeat it. Train your visual memory with up to 12 colors

Hear a sequence of musical notes, then play them back on a piano, guitar, or staff. Ear training with melody bonus rounds

Memorize a grid of emojis, then spot the missing one. How many rounds can you survive?

Learn world capitals, flags, and geography through interactive map quizzes

Learn foreign words by matching them to emojis in a fast-paced 60-second sprint

Spot the one true statement. Math, calendar, and geography facts generated on the fly

What does this word mean? Pick the correct meaning from the options. Vocabulary in all 25 languages

Read words in reverse. See DOG, pick GOD from the list. Millisecond timer, 25 languages

Drop these historical events in chronological order. From the pyramids to the Moon landing - 2 to 10 events at a time

Sort planets, animals, mountains, countries, and buildings from smallest to largest. 2 to 10 items per round

Rank animals by brain cells, athletes by body weight, and city pairs by distance · pick the order, smallest first. 3 to 8 items per round

See an event, pick the year it happened. Caesar, Galileo, the Moon landing - multiple-choice history streaks

See an event, pick the person responsible. From Newton to Neil Armstrong - multiple-choice history streaks

See a historical figure and a year, pick which deed was actually theirs. Newton, Cleopatra, Edison - separate fact from anachronism

Solve arithmetic problems against the clock. Choose operations, number ranges, and difficulty

Convert units and test your knowledge. How many pints in a liter? Train metric and imperial conversions

How many hotdogs to cross a football field? Spin the slot machine and test your estimation skills

What comes next? Spot the pattern in number sequences - arithmetic, geometric, Fibonacci, and more

Spot the cell where only one digit fits. Forced-move Sudoku micro-puzzles, validated by row, column, and box

Complete the 3x3 pattern grid. Classic IQ test reasoning with shapes, colors, and counts

Which one does not belong? Test classification and abstract reasoning skills

Find the rotated match. Train mental rotation - a core spatial reasoning skill

Doctor is to hospital as teacher is to ___ ? Train verbal reasoning through word-pair relationships

The word says RED but the ink is blue. Name the ink, or flip to reverse mode and read the word

Your eyes lie - the math knows the truth. Spot equal lengths, identical greys, and truly parallel lines across 57 classic optical illusions

Solve classic, logic, math, and wordplay riddles. Pick difficulty, type, and how many choices. Streak mode

Pick the move that delivers checkmate in one. Pure board reasoning, cheat-proof validation, streak mode

Flag the unrevealed cell that must be a mine. Constraint-satisfaction deduction, cheat-proof validation

Crack the secret code from past guesses and peg feedback. Pure deductive reasoning, cheat-proof validation

Two emoji walls, K differences. Spot every altered cell on the bottom wall · 100 to 500 emojis, 1 to 20 differences. Known in Swedish as Finn fem fel

A famous painting paints itself row by row from coloured-emoji squares. Guess the work before the scanline finishes · learn art history while you train pattern recognition

Spot the camouflaged digit or letter as it slowly fades into the background. Like an Ishihara plate, but a streak game · how subtle can you go?

See a black silhouette · pick what it is. 100 famous animals, foods, vehicles, places, and objects · pure outline-recognition in 25 languages

Find MemPi the mascot hiding in a wall of coral, red and pink emojis. One tap to find him · the higher the difficulty, the more the decoys share his colour

Drag heavy industrial sliders against constant friction to produce resources. Sell them slow. Reinvest in less friction, auto-slide and more sliders. A minimalist tactile idle game · runs offline

Walk a fog-of-war maze and beat short encounters drawn from every other game. The polymath gauntlet — beat this if you want to be good at a bit of everything. Difficulty ramps every level

Cross-game streak roulette drawn from the whole PlayMemorize catalogue. Pure full-spectrum test · every round can be any game

Cross-game streak restricted to arithmetic, unit conversion, number sequences, and forced-move Sudoku

Cross-game streak restricted to geography, polyglot vocabulary, facts, definitions, and backwards-reading

Cross-game streak restricted to memorisation · digits of pi, emoji cards, colour sequences, and ghost

Cross-game streak restricted to pattern, deduction, and abstraction · matrix, analogies, Stroop, illusions, riddles, chess mate, flag-a-mine, mastermind