Today only, It is Warm Work Age of Sail naval rules 2nd edition from Crookedhead Games is discounted 60% from its normal price of $7.95 USD to $3.18 USD at Wargame Vault.
Naval Warfare in the Age of Sail – The rules are written to cover the period 1740-1815, but can easily be used to fight actions before and after those dates. The new edition includes rule enhancements, improved graphics, and a starter scenario.