Deep Fighter , released for the Sega Dreamcast in 2000 , is a simulation game that puts players in the shoes of a private in the defense force. The story follows deadly missions to destroy enemies, perform reconnaissance, and rescue damaged craft and installations, all while avoiding the dangers posed by droids and drones that scuttle around the crumbling city.
The ultimate objective of the construction of a giant mothership, the Leviathan , drives the gameplay. The game combines elements of furious 3-D dogfighting and challenging exploration in true 3-D environments, with 3-D worlds reacting and evolving around the player as difficulty adapts to their skill level.
The game features five life-like and realistic environments, including the Abyss, Atlantis, and Jungle. Players can engage in dynamic modes of battle, including 3-D combat, unique weapons, special attack moves, and upgradable fighter submarines.