The rules

The edition. The simulator plays Blood Bowl Second Season Edition (2020), with the official May 2025 Designer's Commentary and Errata applied. Games Workshop has since released the Third Season Edition. A later ruleset pack may add it; the simulator keeps each edition as its own pack, so one can be added without changing another.

Death Zone is an optional module, switched on by a league option by option: coaching staff, wizards, biased referees, other inducements, mercenaries, giants, sponsorship, stadia, unusual balls, weather tables and match events. Blood Bowl Sevens is not included.

House rulings. Where the books leave a question open, or a league needs something they don't have, the simulator makes a ruling and writes it down: R-001 to R-026. Some settle a detail of the rules (where a sent-off player goes, how the throw-in template lies on the grid). Others add to a league what the books leave out: home advantage, retirements, coaching changes, free agency, a player pool and draft, marquee players, kits and crowds, and coaches who learn from their matches.

How the rules are held. Every rule has an ID, and every rule the engine plays has a test written from the book's own examples. Each FAQ answer and erratum is linked to the rules it changes. The rulebook's text is the publisher's; this site never shows it. It names rules and links to the official books instead.

The official rules