From Their Website: Master & Commander: Close Quarters is a set of rules designed for playing boarding actions between Napoleonic ships. Now you can play in detail such famous actions as ‘Nelson’s Patent Bridge for Boarding First-Rates’ in the battle of Saint Vincent, follow Captain Decatur in a boarding action against Barbary Corsairs, or board the Royal Navy ships with the San Juan Neponucemo at Trafalgar Fast, innovative and simple playing system. Designed to play with our ship boards, and CAPITAN MINIATURES 18mm crews,all you need to play is downloable for free.