Here's what players have to say…

This was awesome - I recommend it!

Peter G.

The puzzles were clever and largely they were both new-to-me and challenging-while-achievable. That’s pretty much what you want, right?

James Nathan, The Opinionated Gamers

Three enthusiastic thumbs up, plus one 10-yr-old insisting that the answer to everything is probably 'pizza.'

Beth Q.

I highly recommend this game. Highly.

Michael Burstein, Award-winning sci fi author and
member of the National Puzzler's League.

Because this game is beautiful. And not just the art--the attention to detail here is astounding, and the ease of the solutions is brilliant.

Fun little puzzle game.

John N., Amazon reviewer

Fun Challenge! This is an amazing game - it's so impressive that just a few cards can fit together so many ways.

Brian Epstein, Amazon reviewer

This game was so much fun! I love puzzles and I'm stuck inside a lot during the winter so this really hit the spot.

Jen Jen, Amazon reviewer

...working through the puzzles was a joy.

Board Game Gumbo review

...a brilliant puzzle game with a clever solution mechanism.

Room Escape Artist review

...a very cleverly created card game that will have you scratching your head and thinking like you never have before...

Board Game Capital review

Read more reviews!

A new kind of puzzle game!

"It was a great experience for the three of us . . . I love it!"
Dale Yu,The Opinionated Gamers

Doctor Esker has vanished, leaving behind only a mysterious book full of puzzles written in his own hand. Nobody has cracked his cryptic codes yet. Are you up to the challenge?

The game provides a deck of 73 cards which contain nine devious puzzles to solve. You can play through the puzzles solo or together with family and friends. Great for a party, a game night, or a lazy afternoon.

The Sequel is here!

Son of Doctor Esker's Notebook is ready, with another 74 cards and ten puzzles to solve! Each game (original and sequel) is stand-alone, and you can play them in any order.

Click for more about the game

Video guides (videos contain no spoilers)

Alien podcasters host an unboxing

Introduction to the game