
- BGG rank
- BGG #5,341
- BGG rating
- 6.9
Cthulhu Wars: Duel
- 2 players
- 20–30 min
- Complexity 2.9/5
- 2020

Rules assistance for Cthulhu Wars: Opener of the Way Expansion
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.
Cthulhu Wars: Opener of the Way Expansion is an expansion for Cthulhu Wars released in 2015 for 2–5 players, 90 minutes per game, and ages 12 and up. It was designed by Sandy Petersen and its main mechanics are Variable Player Powers, Area Movement, and Dice Rolling.
Opener of the Way adds the cosmic horror of Yog-Sothoth. He changes the fundamental laws of reality. With his ability of the Million Favored Ones, his units are able to promote for free after combat. Cultists promote to Mutants, Mutants become Abominations, and Abominations become Children of Yog-Sothoth. (Children of Yog-Sothoth can fragment into as many Mutants as are in your unit pool.) He also has the Dragon Rising and Dragon Descending spellbooks, which can only be used once per game (they are flipped upside-down after use). These give him potent one-time boosts which are real game-changers. Other spellbooks let him rain death from the sky; summon monsters from enemy-held gates; and channel raw Power into a Battle. And of course, Yog-Sothoth gives you the ability to move from Gate to Gate without passing through intervening Areas. In our playtests, Yog-Sothoth has proven to be an extremely powerful faction, as befits the status of the One-in-All. Other players have learned to keep one eye cocked at the Opener of the Way, because he has powers that produce sudden upsets and reversals of fortune.
Cthulhu Wars: Opener of the Way Expansion supports 2–5 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 Cthulhu Wars: Opener of the Way Expansion is 90 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 Cthulhu Wars: Opener of the Way Expansion 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.
Cthulhu Wars: Opener of the Way Expansion has a complexity rating of 3.4 out of 5 from BoardGameGeek players, which makes it a medium-weight game. The rating reflects how much rules knowledge, planning and decision-making a typical game demands. Expect a longer first teach for heavier games, and use a preparation guide before game night.
Cthulhu Wars: Opener of the Way Expansion belongs to these categories: Horror, Miniatures, and Expansion for Base-game. Its main mechanics are Variable Player Powers, Area Movement, and Dice Rolling. 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 credited designers of Cthulhu Wars: Opener of the Way Expansion are: Sandy Petersen. These credits come from the published game data and name the people responsible for the game’s design, not its illustrators or publishers. Designer pages on MeepleRules collect other titles by the same designers, which helps when you enjoy a game and want to find similar ones.
The catalogue lists Cthulhu Wars: Opener of the Way Expansion as an expansion for Cthulhu Wars. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Cthulhu Wars to use it. Check that your edition of Cthulhu Wars is compatible, as some expansions were revised between editions.