Cretaceous Rails: Cretaceous Seas
BGG rating
9.5

Expansion for Cretaceous Rails

Cretaceous Rails: Cretaceous Seas

2026

Rules assistance for Cretaceous Rails: Cretaceous Seas

Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

  • 1–4 players
  • 30–120 min
  • 14+

Rules assistant for Cretaceous Rails: Cretaceous Seas

What would you like to know?

Answers come from the official rulebook, with the page to check.

Cretaceous Rails: Cretaceous Seas is an expansion for Cretaceous Rails released in 2026 for 1–4 players, 30–120 minutes per game, and ages 14 and up. It was designed by Ann Journey and its main mechanics are Modular Board, Network and Route Building, and Pick-up and Deliver.

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About the game

The time travel tourism industry extends its prehistoric rail network across the scenic interior sea to take time tourists to see the majestic plesiosaurs! Cretaceous Seas introduces two new modules to expand your game of Cretaceous Rails! The Plesiosaurs module introduces the majestic plesiosaurs themselves and enhanced actions that create dramatic game-changing combos! The Blueprints module rewards players with immediate bonuses for building their resort according to plan! —description from the publisher

Questions and answers

Cretaceous Rails: Cretaceous Seas 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.