Pick your patrol

Basic OperationsSubmarine School · Virginia-class SSNThe first lesson: helm, layer, contact, torpedo. Start here. Bashi ChannelLuzon Strait · Virginia-class SSNStop an amphibious group under a Type 055 screen. Free HuntNorwegian Sea · Virginia-class SSNDuel with a Yasen-M in open water. Carrier StrikePhilippine Sea, east of Luzon · Virginia-class SSNInside a carrier group’s screen, eight helicopters overhead. Northern FleetBarents Sea, off the Kola Inlet · Astute-class SSNTrail a Borei out of the Kola Inlet without starting a war. Grey ZoneGulf of Finland · Type 212CD AIP submarinePhotograph a shadow-fleet tanker over a Baltic cable on batteries. Strike PackageGulf of Oman, off Jask · Virginia-class SSNTomahawks on a coastal missile battery, then get out. Fujairah ApproachesWestern Gulf of Oman · Virginia-class SSNFind an Iranian Kilo before she reaches the tanker lanes. Bab el-MandebSouthern Red Sea · Virginia-class SSNEscort tankers through waves of explosive drone boats. Under the IceArctic Ocean, north of Franz Josef Land · Astute-class SSNArctic transit under a 40 m ice draught with two SSNs hunting. Dry DeckBaltic Sea, off the Sambia coast · Virginia-class SSNInsert and recover a SEAL element off a hostile coast. Launch OrderNorwegian Sea, deterrent patrol box · Columbia-class SSBNAn emergency action message, a launch box, and a Yasen nearby.

A dozen of more than fifty patrols, all on real-world charts. Thirteen campaigns carry one boat through a theatre: weapons are not replenished, hull damage carries over, a surviving crew gets sharper, and failures raise the enemy's alert. Five difficulty levels from Arcade to Realistic.