Coal and the Kaiser naval miniatures rules

Coal and The Kaiser is a set of free naval miniatures rules.

Author Leonard Heinz writes:

This is a game of low to moderate complexity portraying tactical naval combat in the period from 1904 through 1918. While it will not yet you play Jutland in a day, it will let you play some fairly large actions reasonably quickly. It uses a scale of 4 minutes to the game turn and 1000 yards to an inch on the playing surface. The rules focus on big ships and big guns: battleships (and particularly the Dreadnought-type battleships that began service in 1905), battlecruisers and armored cruisers.

Fokker World War I Aerial Rules

Fokker is a one-page set of rules for playing miniature games with World War I aircraft.