NavyBlue is a naval-themed action game where players command a fleet of ships with the objective of defeating the opposing forces and destroying their main base.
The gameplay is based on traditional Battleship rules, with players taking turns selecting locations to attack or defend. A four by seven grid map allows for strategic placement of ships, as getting further away from home base increases the number of enemy vehicles encountered. The player can choose from eight different naval vessels, each with unique size and special weapons that increase firepower.
Amunition units are required to use these special weapons, which become unavailable when a vehicle is destroyed. Players take turns firing at each other's ships on a 14 by 8 battlefield, aiming to sink all their opponents' vessels first and emerge victorious.