WITNESS MARK

Devlog

• WITNESS MARK is in the catalogue sale until 9 September
  September 03, 2026 by CSAF — Core Systems Asset Factory

  A witness mark is a horologist's term for the faint trace one part leaves on another, which a restorer reads to work out where things originally sat. It is physical evidence you reason backwards from,... Continue reading
• A Spanish cartridge is now in the download
  August 30, 2026 by CSAF — Core Systems Asset Factory

  Version 1.1.0 adds witnessmark_es.gb to the download. It is the whole game in Spanish: 160 certified cases, four tiers, 32,768 bytes. The English cartridge is unchanged and sits in the same download,... Continue reading
• WITNESS MARK is out: a Game Boy deduction game where every case is proved fair before it ships
  August 28, 2026 by CSAF — Core Systems Asset Factory

  WITNESS MARK is live. It is a real 32 KB Game Boy cartridge, and there is a free five-case demo playable in the browser on the game page — no download, no account. Five suspects stand in a lineup. A... Continue reading