Deep Fighter is an action-adventure game for the Sega Dreamcast where players assume the role of a private in the defense force, tasked with missions to destroy enemies, conduct reconnaissance, and rescue damaged vessels. The game features dynamic 3D environments that evolve based on player skill, alongside intense underwater combat, diverse weaponry, and customizable submarines across various realistic settings.
As a private in the defense force by The General, players take on deadly missions to seek out and destroy enemies, perform reconnaissance into uncharted waters and rescue damaged craft and installations. Meanwhile, droids and drones scuttle around busily, maintaining and repairing the slowly crumbling city. With the ultimate objective of the construction of a giant mothership, the Leviathan, that will transport the entire civilization away from hostile waters. This games combines elements of furious 3-D dogfighting and challenging exploration in true 3-D environments. 3-D worlds actually react and evolve around you as the game's level of difficulty adapts to your skill level. Five life-like and realistic environments, including the Abyss, Atlantis, and Jungle. Dynamic modes of battle include 3-D combat, unique weapons, special attack moves and upgradable fighter submarines.