Opt out of Match.

Last updated: 2026-09-26. Hammerstein.ai is operated by Conflict Simulations LLC.

If you published or designed a game and do not want Match to run it, you can ask us to opt it out. You do not need a Hammerstein account.

Email [email protected] with the game's title and your role as publisher or designer. Please include the rulebook title, edition, other titles or subtitles it is sold under, and the relevant VASSAL module names or IDs you know. This helps us identify the right game and avoid affecting a different title.

Once we record the opt-out, Match will refuse new games and further turns for that game. We will delete stored copies of its rulebooks, including extracted text and indexes. We may contact you to clarify which editions or modules your request covers.