
- BGG rank
- BGG #28,759
- BGG rating
- 5.4
J.U.M.P. Into the Unknown
- 1–4 players
- 120 min
- Complexity 2.8/5
- 1999

2003
Rules assistance for Cthulhu Mash
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

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Answers come from the official rulebook, with the page to check.
Cthulhu Mash is a board game released in 2003 for 1–4 players, 60 minutes per game, and ages 12 and up. It was designed by David M. Niecikowski and its main mechanics are Dice Rolling, Modular Board, and Cooperative Game.
The game is inspired by the Lovecraft mythology. Players choose one of four characters and travel on a random board made of individual tiles. They face monsters which re-spawn until monster generators are destroyed. Monster generation and combat are resolved by rolling dice. Goals vary with the type of game selected. In a cooperative games and solo play, players must get rid of all monsters. In death match, players must kill each other and are only eliminated when killed by another player. From the back of the box... Across time, four souls stumbled upon secrets not meant for mankind, and died... but not before going insane. In the 17th century, a Mariner Merchant visited port of Innsmouth filled with occultists worshipping Cthulhu and mating with Deep Ones. A late 19th century Arctic Explorer escaped the clutches of the Gnoph-Keh to find a hidden city of the Elder Things. At the turn of the 20th century, a Miskatonic Psychotherapist analyzing the dreams of his patients tapped into nightmares of Leng Spiders and Moon-Beasts. In the 1920's, a Private Eye investigating the disappearance of her farming parents revealed Star Vampires and Mi-Gos as the culprits. All four have been given a second chance at life but must relive and overcome their last and most terrifying days. Cthulhu Mash is an easy to learn, fast paced, expandable, random tile, monster generating game that can be played in under an hour. Not only can the game be played cooperatively, but rules are provided for death match, capture the flag, and solo games as well. Set in the Cthulhu Mythos. Integrates with: Monster Mash I
Cthulhu Mash supports 1–4 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 Mash is 60 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 Mash 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 Mash has a complexity rating of 2.8 out of 5 from BoardGameGeek players, which makes it a medium-light 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 Mash belongs to these categories: Fighting, Horror, and Adventure. Its main mechanics are Dice Rolling, Modular Board, and 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 credited designers of Cthulhu Mash are: David M. Niecikowski. 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 Mash as a base game. It can be played on its own with the components in the box and does not require any other title. Expansions, if any exist, add new content or rules on top of it and are listed separately in the catalogue with a link back to this base game.