System18

General Information

System18 is a format for 18xx microgames. Playtest Feedback Thread (BGG)

It is up to the map designer to provide rule differences from the base System18 rules.
System18 is expected to be published with two rulesets: Full Capitalization Rules and Incremental Capitalization Rules. These are currently unpublished, but the implementations are generally close to 18Chesapeake and 18Texas. A list of rules differences will be provided later.
Game End: Bankruptcy (full capitalization rules), one player remains (incremental capitalization rules), Complete one full set of operating rounds after the final phase has begun (full and incremental capitalization rules)
1846 rules for dealing with bankrupt players' companies if it does not end the game

Northeast US (Scott Petersen)

France (Scott Petersen)

UK Limited (Scott Petersen)

Full capitalization rules
Remove tiles 12-13, 205-206
For the cities that are outlined circles with no fill, when tiles are built in these hexes, the player laying the tile may choose to place it as either a city or plain tile and the hex retains that type for the rest of the game, upgrades are as usual.
Trains do not rust based on new train purchases.
There is a new tracker for the rusting schedule. At the end of each OR, increment the rusting round tracker. First and second ORs have no effects.
At the end of the third OR, the 2-trains rust.
At the end of the fourth OR, the 3-trains rust.
At the end of the fifth OR, the 4-trains rust.

Twisting Tracks (Scott Petersen)

Full capitalization rules
Use new 5-train and 6-train (revised rusting)
Add new D trains in phases Pink, Purple, Orange, Navy
Add tiles X1-X6, 2× 59
Remove tiles 1-2, 7-9, 12-13, 23-29, 39-47, 53, 55-56, 61, 69, 205-206
Each corporation has three extra "ticket counters." When a company's home hex is upgraded to a 14/15/619 tile, the company that upgrades it must immediately place a ticket counter in that hex as their station marker placement. Ticket counters may be placed in the same hex as a company’s own station marker (maximum one ticket counter and one station marker per company per hex). Ticket counters may also be placed following the rules for placing station markers for $25. Ticket Counters function like tokens (including blocking other companies and operating trains), but each route can only pass through ONE of the company's own ticket counters. Ticket counters can be bypassed if there is an open slot in the city or if the city contains the company's own token.

China Rapid Development (Scott Petersen)

Incremental capitalization rules
Add tiles X1-X9
Remove tiles 12-13, 53, 61, 205-206
Corporation value increases one space for each town or city tile company lays/upgrades (may lay 2 yellows or upgrade 1)
Corporation must pay half their current market value for each build that contains a town or city (rounded up, move price after each build)
If the corporation does not build, its value goes down one space
There is no stock price movement for revenue

Poland (Ian Wilson)

Partial cap.
Extra tiles: Green ‘D’ tile like #12 for Danzig. ’61 Moscow green & brown for Warsaw, plus grey (three slots, value 100). Also, two more #8 tiles, and two grey B tiles (two slots, value 70).
Remove tiles #59, #64, #65, #66, #67, #68, #12, #13, #205 & #206.
The map is divided into three countries: Russia, Prussia & Austria.
Before each SR there is a PR (Parliament Round). In their turn, a player may start an (upwards) auction for the right to start a company in the subsequent SR. Minimum bid $0, bids in multiples of $5. (Use the charters to show the winners.) The round ends when all players pass. Winning bid money is paid to the Bank.
The priority does not change during a PR.
A player may only buy the presidents certificate of a company if they acquired the rights in the preceding PR.
If a player does not buy the presidents certificate, the rights lapse at the end of the SR.
Prior to phase 5, a company may not lay a token outside their home country.
There is a bonus for running North-South and East-West (see map).
If no company is floated during the first stock round, then the game ends immediately at the end of that round.