Single-player games like Rule the Waves 3
Below are 9 single-player Steam games similar to Rule the Waves 3, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Rule the Waves 3 page.
Ranked picks
- 1

Ultimate Admiral: Dreadnoughts
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
Design warships the way you want them, command fleets, win the naval arms race for your nation!
- 2

Silent Hunter® III
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Simulation with Rule the Waves 3.
The king of submarine simulations returns with an all-new 3D engine, new crew command features, and more realistic WWII naval action than ever before. The movie-like graphics and simple, tension-filled gameplay make this the perfect game for the realism fanatic and the casual gamer.
- 3

War on the Sea
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
Command ships, submarines and aircraft in the South Pacific during WWII.
- 4

Sea Power : Naval Combat in the Missile Age
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
From the lead designer of Cold Waters, Sea Power lets you control NATO and Warsaw Pact forces in modern naval conflict campaigns. Use your advanced naval weaponry and sensors to respect rules of engagement and defeat the enemy forces in a tense fight for initiative and air/naval supremacy.
- 5

Task Force Admiral - Vol.1: American Carrier Battles
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
Experience the thrill of leading American aircraft carriers to victory in this innovative full 3D command simulation wargame set in the Pacific in 1942. First-person or God’s eye, you lead your fleet and planes right from the center of the battle.
- 6

Darkest Hour: A Hearts of Iron Game
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy with Rule the Waves 3.
Developed by a team of experienced modders from the Paradox forum, Darkest Hour is a stand-alone Hearts of Iron game. The game features a mixture of short and in-depth campaigns set across the darkest chapters of the 20th century. Play from the outbreak of the Great War up until the onset of the Cold War.
- 7

Atlantic Fleet
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
Turn based tactical and strategic naval combat. Atlantic Fleet puts you in command of the Allies or Kriegsmarine (German Navy) in the longest military campaign of WWII, The Battle of the Atlantic.Take command of surface ships, submarines as well as carrier and land based aircraft in the deadly struggle for control of Atlantic shipping...
- 8

SHIPS AT WAR
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Strategy and Simulation with Rule the Waves 3.
Sink player-made battleships, aircraft carriers and submarines in this physics-based game. Use pre-built ships and sink the enemy by deploying aircraft, torpedoes, depth charges or shells. Or built your own ships in the extensive ship-editor.
- 9

Tactical Warfare Simulator
Single-player alternative to Rule the Waves 3 — playable solo, no multiplayer required. Shares Simulation with Rule the Waves 3.
Experience Adrenalin fueled dogfights over the western front.