Timed out and passed, eight love. Josh
Adminned at 16 Mar 2010 12:46:33 UTC
As a subrule of Rule 2.2 (Inventions), add a new Rule called “Intake Valve”:-
Cost: 2 Iron, 1 Wood Power Requirement: 2
If an Invention has an Intake Valve, any of its parts which require the Spending of Coal to activate an effect have that Coal cost reduced by one quarter (rounding down the new value).