
- BGG rank
- BGG #582
- BGG rating
- 9.0
Aeon Trespass: Odyssey
- 1–4 players
- 90 min
- Complexity 4.8/5
- 2022

Expansion for Warhammer Quest: Blackstone Fortress
2019
Rules assistance for Warhammer Quest: Blackstone Fortress – Cultists of the Abyss
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
Warhammer Quest: Blackstone Fortress – Cultists of the Abyss is an expansion for Warhammer Quest: Blackstone Fortress released in 2019 for 1–5 players, 120–180 minutes per game, and ages 12 and up. Its main mechanics are Cooperative Game.
An Abominable Intellect rises in the Blackstone Fortress, attracting more hostiles from their dark hiding places. Are you ready for the challenge? These models were originally released in Blackstone Fortress: Escalation. They are perfect for use as hostiles with the Abominable Intellect cards, which increase the difficulty level of your quests in the Blackstone Fortress, or as models in a Warhammer 40,000 Chaos Army. Rules for using these models in Warhammer 40,000 can be found in Blackstone Fortress: Escalation. Contents: 1 Cultist Firebrand 1 Cultist Champion 6 Chaos Cultists —description from the publisher
Warhammer Quest: Blackstone Fortress – Cultists of the Abyss supports 1–5 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Warhammer Quest: Blackstone Fortress – Cultists of the Abyss is 120–180 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Warhammer Quest: Blackstone Fortress – Cultists of the Abyss for ages 12 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Warhammer Quest: Blackstone Fortress – Cultists of the Abyss belongs to these categories: Fighting, Exploration, and Adventure. Its main mechanics are Cooperative Game. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The catalogue lists Warhammer Quest: Blackstone Fortress – Cultists of the Abyss as an expansion for Warhammer Quest: Blackstone Fortress. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Warhammer Quest: Blackstone Fortress to use it. Check that your edition of Warhammer Quest: Blackstone Fortress is compatible, as some expansions were revised between editions.