
- BGG rank
- BGG #2,751
- BGG rating
- 6.5
Nightfall
- 2–5 players
- 45 min
- Complexity 2.6/5
- 2011

Rules assistance for Teratozoic
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.
Teratozoic is a board game released in 2014 for 2–6 players, 60 minutes per game, and ages 13 and up. It was designed by Teel McClanahan, III and its main mechanics are Pattern Building and Deck, Bag, and Pool Building.
The nations of mankind created horrifying new weapons to wage war with one another—genetically engineered monsters whose traits could be altered and combined to overcome any opponent. Unfortunately, humanity was no match for its own creations and armies of terrifying monsters were soon out of control in their destruction of civilization. In their final global nuclear strike, humanity accomplished two things: They wiped themselves out, and they created a highly mutagenic environment where the monsters could thrive. This is the world at the start of Teratozoic, a light deck-building game. (From greek: terato-, of or relating to monsters, -zoic, of a (specified) era, or having a (specified) animal mode of existence.) Each player has their own deck of monster parts (their gene pool), and will attempt to make the best of the mutations they draw from a common deck to come out on top in the battle for survival. At first the monsters will be more random mutation than representative of a stable gene pool (players will draw most of the cards for each hand from the common deck), but by the time players reach the Teratozoic Era, their monsters will be built entirely from the best traits they've been able to retain each generation. The dominant species in this new era (the final winner of the game) will be the one with the most robust gene pool—the player who can create the biggest, most impressive monsters at the end of the Teratozoic Era.
Teratozoic supports 2–6 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 Teratozoic 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 Teratozoic for ages 13 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.
Teratozoic has a complexity rating of 1.8 out of 5 from BoardGameGeek players, which makes it a 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.
Teratozoic belongs to these categories: Card Game. Its main mechanics are Pattern Building 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 Teratozoic are: Teel McClanahan, III. 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 Teratozoic 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.