The game presents submarine operations from a tactical overhead perspective. The main objective is to guide the Red October through hostile waters, complete mission goals, and survive encounters with enemy vessels. Movement, positioning, and the timing of attacks are central to progress.

Missions are structured around navigation and combat challenges. Players advance by reaching required destinations and dealing with threats, but the game does not provide the extensive systems, crew management, or realism associated with dedicated submarine simulators.

Use careful positioning rather than rushing into combat. Hostile vessels are easier to handle when approached with room to maneuver and a clear escape route.

Treat navigation as an objective in its own right. Check the surrounding area before committing to a new course, avoid unnecessary engagements, and preserve your options for the final approach to each destination.