
- BGG rating
- 8.9
Deep Rock Galactic: The Board Game – Space Rig and Biome Expansions: Combined Mission Book
- 1–4 players
- 60–150 min
- 2024

Rules assistance for Deep Rock Galactic: Biome 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.
Deep Rock Galactic: Biome Expansion is an expansion for Deep Rock Galactic: The Board Game released in 2024 for 1–4 players, 60–150 minutes per game, and ages 12 and up. It was designed by Ole Steiness and its main mechanics are Dice Rolling, Tile Placement, and Modular Board.
Listen up and sharpen your pickaxes, miners! A whole new region below the surface of Hoxxes IV has been discovered, with four new biomes to explore. They are full of valuable minerals, but also new environmental challenges, biological hazards and a bunch of new creatures. Preserve your ammo, and be prepared to fight the biggest creature you have ever seen; the terrifying Dreadnought, much bigger than even the ugly Oppressor. Hoxxes IV will not easily give up on its valuables, so get ready to hack, slash, shoot and stomb your way through icy caves, molten rocks, gooey caves and wonderous, luminescent, underworld jungles. —description from the publisher
Deep Rock Galactic: Biome Expansion 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 Deep Rock Galactic: Biome Expansion is 60–150 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 Deep Rock Galactic: Biome 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.
Deep Rock Galactic: Biome Expansion has a complexity rating of 3.0 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.
Deep Rock Galactic: Biome Expansion belongs to these categories: Dice, Video Game Theme, and Exploration. Its main mechanics are Dice Rolling, Tile Placement, and Modular Board. 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 Deep Rock Galactic: Biome Expansion are: Ole Steiness. 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 Deep Rock Galactic: Biome Expansion as an expansion for Deep Rock Galactic: The Board Game. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Deep Rock Galactic: The Board Game to use it. Check that your edition of Deep Rock Galactic: The Board Game is compatible, as some expansions were revised between editions.