Jack Hard hires a fellow diver to explore an old Second World War Submarine. He soon finds that there is an entrance to an underground complex nearby. An operative contacts him over the radio telling him that his fellow diver is actually a member of the CIA. Jack then soon finds him dead and must take up the fight. The plot takes place in an abandoned, underwater, secret Soviet base that has been taken over by terrorists.
In much the same vein as Far Cry and other games of the genre, Red Ocean could be considered a traditional FPS. The game tries to introduce some innovative elements like water effects including rooms that flood and underwater diving sequences.
Red Ocean has achieved the 2007 German Developer Award "Deutscher Entwicklerpreis" in the category for "Best German Action Game".