Open Mat

Open Mat’s rules. Open Mat is for people who train.

RookFlow: Grappling Map, by GhostLabs. You accept these in the app once, before you first pin your gym on the globe or join one.

  1. Names come from word lists. Don’t put them together to insult anyone.
  2. Your gym’s rooms are for training. Nothing hateful, sexual or violent in how they’re laid out.
  3. Your week is your own training. Faking XP gets a gym hidden.
  4. Report what breaks these rules. We look at reports every day, and three reports hide a gym until we have.
  5. We remove gyms that break these rules, and can close accounts that keep doing it.

Version 1: when the rules change, the app asks again. What Open Mat keeps is in RookFlow’s privacy policy. Questions: ghostlabsoftware@gmail.com. GhostLabs, Stuttgart, Germany.
Last updated: 24 October 2026.