Null Cipher

The release date for Null Cipher is July 26, 2026, on PC. You are stationed as a codebreaker at an isolated signal-intercept post, tasked with decrypting 83 hand-authored messages as various political factions descend into open war. The game uses real-world cryptanalysis techniques, moving through substitution ciphers and Vigenre squares into more complex mechanical scramblers and keyed grids.

Success depends on manual frequency analysis and keyword inference rather than simple inventory puzzles. As you decode transmissions, you reveal a chronological narrative across five distinct eras of a sector-wide collapse. The challenge lies in the specific mechanical constraints of each faction's cipher, forcing you to learn their political habits to find the keys. Pick this up if you want a pure logic puzzle built on authentic historical cryptography.