Real-Time combat games from TalonSoft where the player controls of fleet of ships during the era before steam power.

Released in June, 2003 from Big City Games and Made By Kiddies, Air Raid: This Is Not A Drill! puts the player at the controls of a deck mounted Bofors anti-aircraft gun during World War II.

Taken from the official website

From the frigid waters of the North Sea to the steamy shoals of the South Pacific, DESTROYER COMMAND puts you in charge of one of the proudest and most versatile ships which ever put to sea: the U.S. Navy destroyer.

During World War II U.S. Navy destroyers fought German U-boats in a grim battle for the waters of the North Atlantic. In the Pacific, destroyers battled Japanese warships in vicious night actions, fended off desperate kamikaze attacks and supported the U.S. Marine landings which pushed the invaders inexorably back to their homeland.

Experience for yourself the challenges of a career as a destroyer captain in DESTROYER COMMAND's dynamic campaigns. Fight the whole of World War II in either the Atlantic or Pacific theater. As you advance in rank you can take charge of a whole division or squadron of destroyers, or you can choose to finish the campaign commanding a single ship.

Taken from the official website.

Enigma: Rising Tide is a groundbreaking concept melding cinematic pacing with immersive graphics to produce the world's first alternate history, naval warfare, vehicular shooter game in an online, persistent, action-packed, 3-D setting.

Command a variety of surface ships and submarines. Sail with and against thousands of other players, deploying deck guns, torpedoes, hedgehogs, and depth charges. Communicate with your teammates in encrypted chat channels, evade deadly torpedo aircraft, and pluck salvage from the wreckage of enemy vessels. Pit your destroyer against enemy wolfpacks, or stalk fat merchantmen from the murky depths.

Right from the beginning, you'll find Enigma: Rising Tide intuitive, easy to learn, and incredibly challenging. But when you join this world, we don't stop with the basic package. Every three months following release, you get free expansions to the game, including new vehicles, additional features, and dramatically enhanced gameplay.

You'll see as soon as you take the helm: It's a different world.

Contains sites covering Jane's Fleet Command.

Harpoon is a series of simulators of modern Naval and Air Combat.

First in the Digital Combat Series from SSI, this World War Two tank simulator brings you to the front line action in various armor types and sizes.

Tanarus is a multiplayer tank simulation game by Verant Interactive that pits players spanning the globe against each other in a real time battle.

World of Tanks is a free to play online game where players fight each other using a variety of mid-20th century fighting vehicles.