If you already own a copy of Harpoon 3 - Advanced Naval Warfare or Larry Bond's Harpoon - Commander's Edition, you are eligible for a $25US discount when you purchase Harpoon - Ultimate Edition in our online store.
Simply enter your full name, email address and your Harpoon 3 - Advanced Naval Warfare or Larry Bond's Harpoon - Commander's Edition Serial Number.
Your Special Offer Promo Code will then be sent to your email address.
Click Here for a quick guide on using your Special Offer Promo Code
