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 These are currently unpublished, but the implementations are generally close to 18Chesapeake and 18Texas.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)

Northeast US (Scott Petersen)

France (Scott Petersen)

UK Limited (Scott Petersen)

Full capitalization rules
Remove tiles 12-13, 205-206
Only trains of the current phase can be purchased from the bank (the “limited” aspect of this map)
If no train is available from the bank or bank pool, the corporation is relieved of its need to own a train at the end of its turn.
At the end of each OR (and as the last step of completing an OR), remove from the game all the unpurchased new trains of the current phase on offer from the bank (except don’t do this for the unlimited D-trains). The phase changes to the next phase as if a train of that next phase was already purchased.

Twisting Tracks (Scott Petersen)

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 their current market value for each build that contains a town or city (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