Cypher

Cypher is an indie puzzle game developed and published by Matthew Brown. This game was released on Steam for Microsoft Windows on February 20, 2018.

Gameplay
This is essentially a first person puzzle game about cryptography. The game takes place in a museum which features the history of cryptography, from simple substitution ciphers to the Enigma machine and beyond. The player grabs a pen and paper to test their deciphering skills across 40+ challenging puzzles.