
- BGG rank
- BGG #6,446
- BGG rating
- 6.8
Traitors Aboard
- 3–8 players
- 10–30 min
- Complexity 1.2/5
- 2023

2023
Rules assistance for M.O.R.P.H.O.
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.
For 3 players

What would you like to know?
Answers come from the official rulebook, with the page to check.
M.O.R.P.H.O. is a board game released in 2023 for 3–9 players, 20–30 minutes per game, and ages 14 and up. It was designed by Jeffrey CCH and its main mechanics are Player Elimination, Variable Set-up, and Hidden Roles.
In the shadows of a galaxy on the brink, who will you really be? Across the stars, the iron-fisted Empire clings to order and tradition, but whispers of rebellion stir at its edges. Deep underground, the insurgent faction Morpho prepares its final daring strike: The X-Day. Yet in this web of deception, not all fighters share the same goal. Your true mission may be hidden even from yourself. M.O.R.P.H.O.is a compact social deduction card game where every player controls their own secret identities in a tense battle of loyalties, deception, and shifting goals. Set in a futuristic rebellion against an oppressive empire, players manage two hidden identity cards (or one in larger groups), each with its own win condition and hidden agenda. Players can choose to investigate others, reveal or change roles, and manipulate timing to fulfill their personal victory conditions. Special hidden roles like Outsiders and Aliens can be added for even more variety and intrigue. —description from the publisher
M.O.R.P.H.O. supports 3–9 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 M.O.R.P.H.O. is 20–30 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 M.O.R.P.H.O. for ages 14 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.
M.O.R.P.H.O. has a complexity rating of 2.0 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.
M.O.R.P.H.O. belongs to these categories: Card Game, Party Game, and Deduction. Its main mechanics are Player Elimination, Variable Set-up, and Hidden Roles. 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 M.O.R.P.H.O. are: Jeffrey CCH. 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 M.O.R.P.H.O. 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.