18Carolinas

Table of Contents

General Information
Rules Highlights
Rules Clarifications
Variants and Optional Rules
Implementation Notes
Known Problems

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General Information

• Designed by Scott Petersen
• 2-6 Players
• Location: North and South Carolina, USA
• Rules
• Map
• Tiles
• Market

Rules Highlights

• Many rules are similar to 1825 (and 1860)
• Private companies are randomly assigned to players. They can't be bought by share companies, but can be sold to the bank for face value minus $30. Any private companies in the bank can be bought by players.
• Companies are available in "tranches". Only when all shares of a company in one tranche have been bought will the next tranche become available.
• Can sell president's share to market. Companies without a president are in receivership.
• All tiles are double-sided. One side is standard gauge, the other side has the equivalent narrow gauge, or "Southern" gauge track.
• There are special tiles for the "C" hexes.
• South Carolina hexes require "Southern" gauge track North Carolina hexes require "Standard" gauge track until Phase 6.
• Routes cannot mix standard with Southern gauge.
• When entering Phase 6, the number of Standard track-only tiles is compared to the number of Southern track-only tiles. Whichever has most becomes the dominant track type for the rest of the game. The "C" hexes are automatically upgraded to the brown "C" tiles of the corresponding dominant track type.
• After Phase 6, upgrades to the non-dominant track type are no longer possible, although laying yellow track of either type is now allowed in both North and South Carolina. Non-dominant track tiles may be upgraded with dominant track tiles. In addition, an entire route between two cities can be converted to the dominant track type (by "flipping" the tiles).
• Trains and phases are completely different in 18Carolinas. Instead of buying specific trains, companies buy "train power" which can be allocated freely between trains for the purpose of running routes. For each phase, there is a "minimum" train size and a cost for each unit of train power purchased. Please see the rules for details.

Rules Clarifications

Variants and Optional Rules

Implementation Notes

• In the "run routes" step there are buttons to increase (+Train) and decrease (-Train) the number of trains and buttons to increase (+Size) and decrease (-Size) the currently selected train size. Beware that when adding a train, the newly added train is not selected. The game will not allow increasing the size of a train if the current train power has been allocated (or over-allocated).
• Note that depending on the current phase and the amount of train power a company has, it may not be possible to run more than one train.
• After Phase 6, a new option is available in the "lay track" step: track conversion. Pressing the button switches the interface to track conversion mode to allow the player to select a route between two cities. Accepting the route will cause all track between the cities to be flipped to the dominant track side, if possible. To revert to the normal lay track mode, use the "Undo" button.

Known Problems

• https://github.com/tobymao/18xx/issues?q=is%3Aissue+is%3Aopen+18Carolinas