
- BGG rank
- BGG #134
- BGG rating
- 8.0
Wonderland's War
- 2–5 players
- 45–125 min
- Complexity 3.1/5
- 2022

Expansion for Tyrants of the Underdark
2017
Rules assistance for Tyrants of the Underdark: Expansion Decks – Aberrations & Undead
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.
Tyrants of the Underdark: Expansion Decks – Aberrations & Undead is an expansion for Tyrants of the Underdark released in 2017 for 2–4 players and 60 minutes per game. It was designed by Sean Goodison and its main mechanics are Area Majority / Influence and Deck, Bag, and Pool Building.
The Aberrations dismiss all other creatures as lesser beings, toying with them or destroying them as they choose. The Undead heed the summons of Spellcasters who call them from their stony tombs and ancient battlefields, or rise of their own accord in places saturated with death and loss. Contains 2 40-card half decks to expand your options in Tyrants of the Underdark Board Game. Requires a copy of Tyrants of the Underdark Board Game to use.
Tyrants of the Underdark: Expansion Decks – Aberrations & Undead 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 Tyrants of the Underdark: Expansion Decks – Aberrations & Undead 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.
Tyrants of the Underdark: Expansion Decks – Aberrations & Undead has a complexity rating of 2.6 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.
Tyrants of the Underdark: Expansion Decks – Aberrations & Undead belongs to these categories: Fantasy and Expansion for Base-game. Its main mechanics are Area Majority / Influence and Deck, Bag, and Pool Building. 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 Tyrants of the Underdark: Expansion Decks – Aberrations & Undead are: Sean Goodison. 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 Tyrants of the Underdark: Expansion Decks – Aberrations & Undead as an expansion for Tyrants of the Underdark. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Tyrants of the Underdark to use it. Check that your edition of Tyrants of the Underdark is compatible, as some expansions were revised between editions.