
- BGG rank
- BGG #4,701
- BGG rating
- 6.8
Boss Monster: Rise of the Minibosses
- 2–4 players
- 20–45 min
- Complexity 2.1/5
- 2018

Rules assistance for Boss Monster: The Lost Levels
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.
Boss Monster: The Lost Levels is an expansion for Boss Monster 2: The Next Level for 2–4 players and 20 minutes per game. It was designed by Johnny O'Neal and Chris O'Neal and its main mechanics are Variable Player Powers, Hand Management, and Take That.
This 5-card Boss Monster: The Lost Levels mini-pack includes Boss Anererak, Monster Room: Wight House, Monster Room: Room 1-1, Monster Room: Shocksquid Pool, and Monster Room: Piranha Tank.
Boss Monster: The Lost Levels supports 2–4 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 Boss Monster: The Lost Levels is 20 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.
Boss Monster: The Lost Levels 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.
Boss Monster: The Lost Levels belongs to these categories: Card Game, Fantasy, and Video Game Theme. Its main mechanics are Variable Player Powers, Hand Management, and Take That. 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 Boss Monster: The Lost Levels are: Johnny O'Neal and Chris O'Neal. 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 Boss Monster: The Lost Levels as an expansion for Boss Monster 2: The Next Level. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Boss Monster 2: The Next Level to use it. Check that your edition of Boss Monster 2: The Next Level is compatible, as some expansions were revised between editions.