Free brain training games with world rankings. Reaction time, memory, geography & logic. No login needed. Play Stop, F1, Flags, Wordle & more. memgenius.com

A daily puzzle where you sort 6 historical events into chronological order. You get 3 attempts — after each try, correctly placed events lock in. New puzzle every day, no accounts needed. Think Wordle but for history buffs. been featured #3 in Show HN (Hacker News)

Merge identical adjacent tiles before their timer hits zero. Too slow — the tile rusts permanently. Four rust cells and it's game over. Free, mobile-friendly, no install.

Guess what exotic cars actually sold for at real auctions. 10 cars per day, 60 seconds each, one shot. Every day has a different theme. Free, no signup, live leaderboard. Geoguessr for car people.

An interactive geography game that trains your memory by helping you learn country locations daily. Uses spaced repetition, minimal UI, and recall-based input for a focused, addictive learning experience.

Assign unique numbers (1–10) to six variables (A–F) so every clue holds. Four daily puzzles (Easy to Expert) plus unlimited random generation.

DEADBLOCK is a free strategy puzzle game where two players take turns placing pentomino pieces on an 8×8 grid, trying to be the last piece to play. Think of it like competitive Tetris meets Chess. The simple rules hide deep strategy: → Block your opponent's pieces → Force them into dead zones → Be the last to play a move

Full-featured web version of Minesweeper with rankings, statistics and multiple board difficulties.

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Can AI make you laugh? Solve these AI written puzzles to find out.

Solve a daily nonogram puzzle using number clues to fill the grid and reveal a hidden picture.

A browser game resource for Blood Money, built for quick access to game context, endings, and player guidance. It is useful for casual players looking up the game online.

What if Sudoku was faster, more visual… and competitive? Mood2Align is a color-based puzzle game where numbers are replaced by colors. Same logic, new brain workout. It’s easy to learn—but solving it fast without mistakes is where things get interesting. This is a speed game. Every second counts.

Do you have the most music-knowledge? Challenge a friend! The concept is simple: You’re shown two tracks, and you choose which one you think has more streams on Spotify. Every correct answer increases your score, but one mistake quickly ends your run. No room for error, but you’re the music expert, right? Climb the leaderboard :)

A browser-based puzzle/action hybrid where you connect neural nodes to stabilize a central hub before energy or time runs out. Features deterministic procedural generation, WebAudio SFX, and responsive design with keyboard and touch controls.

for geo lovers: guess the weather in three cities daily and compete with your friends

Sensory memory games, test how accurately you can remember colors, sounds, angles, brightness and musical notes. Look, listen, memorize, then reproduce it from memory using sliders and dials. Scoring uses real perceptual science. Leaderboards, daily challenges and multiplayer rooms. Free, no signup.

Your memory is your only weapon. ENGRAM is a psychological stealth-puzzle game built around one brutal mechanic: The room illuminates for a few seconds. Walls, corridors, exit — burn it all into your brain. Then the lights die. You navigate in near-total darkness, guided only by what you can remember. Every level, the room subtly shifts