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Mahjong Solitaire Mahjong Solitaire Mahjong Connect Mahjong Connect Mahjong Titans Mahjong Titans Baker's Game Baker's game Connect Four Connect Four Eight Off
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Euchre Euchre FreeCell Freecell Hearts Hearts Spades Spades Xiangqi Xiangqi Tetris Classic Tetris Bubble Shooter Bubble Shooter Pinball Pinball Tic Tac Toe Tic Tac Toe Reversi Reversi Gomoku Gomoku

Insanely fun & challenging puzzles to train your brain

One of the 500 Best Apps in the world, as chosen by The Sunday Times, with over 2 million downloads!

Join the millions worldwide who enjoy training their brain with A Clockwork Brain, a series of fun & challenging games, specifically designed to test Memory, Attention, Dexterity, Language and Reasoning. All puzzles feature bite-sized, fast-paced gameplay and adaptive difficulty, so get ready for a great mental workout!

With a distinctive, hand-painted look and feel, influenced by Victorian Steampunk and Mayan art, this is unlike any other brain training title out there. Whether you are a puzzle game fan, a health enthusiast, or just looking for a fun and productive way to pass the time and exercise your brain, look no further!

Sprocket, the friendly robot, will be your guide!

What people say

Some games like spades, it’s challenging and addicting, which only helps improve your brain’s performance. It reminds me classy old school games when I was teenager.
Many of us love plays mahjong solitaire. The A Clockwork Brain site collected many cool brainstorming games and it's easy to play here.
Highly polished collection of old school games online. Games works fast even with my not too fast internet, I rate it - 10/10 yeah!
Slick, easy to use interface. A lot of cool games. I rate this site 9/10. A bit old fashion design.
A fantastic collection of classic online card and brainstorming games.
I loved to play Tetris when I was a child. When I found here new online version – I can’t stop now, playing every evening after work.
I like card games, and this site collected almost all my favorites. But ads is quite annoying, so 8/10.
I am in love with all kinds of mahjong. But my favorite is mahjong solitaire. I am used to playing here. Easy navigated, fast site. I recommend!
I am fan of card games and this site amaze me by its simplicity and wide range of games. I usually plays freecell and hearts. I rate it 5/5!