18CTN
2025

Expansion of

CATAN

18CTN

3-5

players

150

min

14+

age

Categories

Expansion for Base-game
Third-party Expansion
Economic

Mechanics

Auction / Bidding
Commodity Speculation
Investment
Market
Ownership

Community Tags

Description

--- "18CTN" is an expansion adding 18xx-style stock investing to a base game, where 3-5 tycoons compete for wealth via island-exploiting companies. Key mechanics include: - *Stock portfolio building* Players invest in companies to earn money and create the best portfolios. - *Company operation* Major companies (4 player colors) and minors (ports) develop and exploit a fictional island. - *18xx-style investment system* Integrates stock market mechanics with player-driven major companies. - *Commodity value system* Dynamically interacts with the 5th major company (robber) and port minors. 18CTN serves as an expansion/extension for a popular base game, introducing an 18xx-style stock and investment system where the four player colors function as major companies. In this competitive setup for 3-5 tycoons, participants aim to maximize earnings and construct superior stock portfolios by investing in and operating companies tasked with developing and exploiting a fictional island. A key addition is the commodity value system, which interconnects with the fifth major company—the robber—and the minor companies representing ports, creating layered economic interactions and strategic depth. ---