Null Cipher

The release date for Null Cipher is July 26, 2026, on PC. You assume the role of a codebreaker at Station Seven, a signal-intercept post tasked with decoding messages from rival factions and a mysterious outside force as a resource-rich sector slides toward total collapse.

This is a pure logic game built around authentic classical cryptanalysis. You will navigate five distinct eras of story by cracking 83 hand-authored messages using real-world techniques like frequency analysis, substitution, and columnar transposition. Each faction uses a different cipher type, meaning you must learn the political keywords of the Federation's Vigenère grids or the mechanical scramblers used by the Corporate Alliance to reveal the plot. The interface is designed for efficiency, highlighting all instances of a ciphertext letter to let you focus on patterns rather than data entry.

Pick this up if you want a serious mental workout that treats cryptography as a narrative tool.