Buy Rule the Waves 3: Expanded Battles PC Key

This content requires the base game: Rule the Waves 3

Where can you buy cheapest Rule the Waves 3: Expanded Battles PC Steam key? Check and compare prices from 14 stores to locate the best and the cheapest option for you among 14 offers featured on XD.deals. Now the lowest Rule the Waves 3: Expanded Battles PC price on keyshops can be obtained on £5.30 (68% off) and on official stores can be obtained on 68 (£12.74 off).

Buy in Official Store:
-15%
£12.74
Buy in Keyshops:
-68%
£5.30
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Official Stores (11)

DRM:
Steam
Steam
Gamesplanet US
Rule the Waves 3: Expanded Battles
Windows
1d ago
DRM:
Steam
Gamesplanet US
£14.99 £12.74
-15%
GamersGate
Rule the Waves 3: Expanded Battles
Windows
1d ago
DRM:
Steam
GamersGate
£16.75 £13.56
-19%
-10% with XDD10copy
-10% with XDD10copy
Gamesplanet FR
Rule the Waves 3: Expanded Battles
Windows
15h ago
DRM:
Steam
Gamesplanet FR
£16.64 £14.07
-15%
Gamesplanet DE
Rule the Waves 3: Expanded Battles
Windows
1d ago
DRM:
Steam
Gamesplanet DE
£16.70 £14.12
-15%
Gamesplanet UK
Rule the Waves 3: Expanded Battles
Windows
15w ago
DRM:
Steam
Gamesplanet UK
£16.75 £14.24
-14%
PlanetPlay
Rule the Waves 3: Expanded Battles
Windows
12h ago
DRM:
Steam
PlanetPlay
£15.29 £14.97
-2%
Steam
Rule the Waves 3: Expanded Battles
Windows
1w ago
DRM:
Steam
Ends in 1 day
Steam
£16.75 £15.07
Ends in 1 day
-10%

Keyshops (3)

DRM:
Steam
Steam
Difmark
Rule the Waves 3 Expanded Battles (PC)
Windows
7h ago
DRM:
Steam
Difmark
£16.75 £5.30
-68%
-15% with XDDEALScopy
-15% with XDDEALScopy
Eneba
Rule the Waves 3: Expanded Battles (DLC) Steam Key (PC) GLOBAL
Windows
6h ago
DRM:
Steam
Eneba
£16.64 £8.12
-51%
-10% with XDD10copy
-10% with XDD10copy
Instant Gaming
Rule the Waves 3: Expanded Battles
Windows
23h ago
DRM:
Steam
Instant Gaming
£17.10 £11.10
-35%

About Rule the Waves 3: Expanded Battles

Rule the Waves 3: Expanded Battles - about the game

Prepare to return to the definitive naval warfare simulation game, Rule the Waves 3, with the new Expanded Battles expansion! Take your love and knowledge of 20th century naval warfare from the exciting campaigns of the base game and get ready to craft and fight the naval battles of your dreams.

Have you ever wanted to see a Jutland-style battleship slugfest set in World War II? Have you ever wondered how the Japanese super battleship Yamato would fare against a navy from the early missile age? What would happen if a US armada fought the Italian navy for control of the Mediterranean? You can see what happens in all these scenarios and more with the Expanded Battles expansion.

For those looking for an easier entry point into the series or anyone looking to fight historical naval engagements from across 20th century naval history, this expansion brings a diverse range of premade historical scenarios for players to test their skills as admirals and learn the intricacies of the game’s tactical battles.  Also included is a ship editor that will allow for players to share their favorite ship designs with the community and a detailed scenario editor to craft and share any naval battle your mind can cook up. For those who prefer a short fight to a long campaign or just want to get right to the battle, the new Quick Battles system allows you to generate new battles from across the Rule the Waves 3 timeline, ranging from small skirmishes to full fleet battles and matching up balanced or unbalanced forces from very different periods.

Rule the Waves 3: Expanded Battles adds new content and gameplay options to an already packed singleplayer experience.

New Quick Battle System:

  • Jump Straight Into Combat: Quickly set the parameters for your naval engagement and let the AI generate a suitable battle for you to jump in and play.

  • Infinitely Repayable Battles: Players can expect to set their belligerent nations, edit the battle size and type, modify the weather, and so much more for an infinitely varied battle generator.

  • Varied Technology and Year Parameters: Set the fleets to be of a similar technological level for a balanced skirmish or create hypothetical scenarios with wide gaps in naval technology.

  • Flexible Fleet and Ship Editor: Design your ideal fleet for your battle from the smallest corvette and destroyer to the largest behemoth battleships and flattop carriers. Or leave it to the AI to design the fleet for you or do a mix of both.

  • Fight Anywhere on the Globe: Choose anywhere on the globe to set your battle and see how the unique geography affects your battle.

Historical Scenarios to Test Your Mettle

  • Rule the Waves 3: Expanded Battles brings with it 6 historical scenarios and 2 bonus hypothetical scenarios for players to test their naval combat skills:

    • Battle of the Yellow Sea (1904) – The Imperial Japanese Navy attempts to block the unification of Russian naval forces in the Far East during the Russo-Japanese War.

    • Battle of Dogger Bank (1915) – The British Navy gets wind of a major German naval raiding force composed of heavy battlecruisers and moves to intercept.

    • Battle of the Denmark Strait (1941) – The Royal Navy’s interception squadron, with the battlecruiser HMS Hood at the head, engages the Kriegsmarine’s battleship Bismarck as it attempts to raid Allied merchant shipping in the Atlantic.

    • Operation Rheinubung (1941) – A small Kriegsmarine task force comprised of the battleship Bismarck and its supporting cruiser, Prinz Eugen, attempts to slip through Royal Navy pickets and scouts and break into the Atlantic to menace supply efforts to the British Isles.

    • Operation Rheinubung Hypothetical (1941) – An expanded version of Operation Rheinubung that gives additional forces to the Kriegsmarine and the Royal Navy, including the operational battleships Scharnhorst and Gneisenau from based at Brest and additional elements of Force H coming up from Gibraltar.

    • Second Naval Battle of Guadalcanal (1942) – An Imperial Japanese Navy task force attempts to support efforts to eject the US from the important island of Guadalcanal, as the US Navy sends a force to reinforce their embattled troops. 

    • Battle of the Eastern Solomons (1942) – A US Carrier Naval Task Force moves to intercept a major Japanese reinforcement force heading for Guadalcanal.

    • Hypothetical Battle in the Mediterranean during the Cold War (1970) – a hypothetical naval engagement between Soviet and NATO navies vying for dominance in the Mediterranean.

Unleash Your Creativity With the New Scenario Editor and Ship Designer:

  • Share Ship Designs with the Community: A new and improved ship designer that will let players easily save their ship designs and share them with the community to use in their own battles.

  • Indulge in Your Creativity: Use the powerful scenario editor to create historical or hypothetical naval engagements from across 20th century naval history (1890-1970).

  • Program Forces to Your Liking: Layout waypoints and multiple paths for the AI opponent to take, ensuring that scenarios will never play out the same way twice.

  • Build Out Your Pool of Aircraft: Input aircraft data for any historical (or fictional) aircraft of your choice to use in your scenario creations.

  • Share Your Scenario Creations: Share your historical or fictional scenarios with the community.

  • Set Your Preferred Technology: Flexibly control the technology of your ships in either the ship editor or scenario editor to suit your design vision.

  • Customize Scenario Details to Your Heart’s Content: Set the doctrine of each side, modify their experience and ammunition types, and so much more.

Interface:
English

Minimum:

  • OS: Windows 11, can work on Windows 10, but not officially supported
  • Processor: 1.2 GHz min, 2.4+ GHz
  • Memory: 4 GB RAM
  • Graphics: No minimum requirement (no hardware video acceleration is required)
  • DirectX: Version 9.0
  • Storage: 1 GB available space
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FAQ

8 questions

Before you start looking for a cheap Rule the Waves 3: Expanded Battles PC key, check the essentials. Developed by Naval Warfare Simulations. Published by Slitherine Ltd.. PC released date: 19 Mar 2026. Genres: Strategy, Simulation. Categories: Family Sharing, Single-player, Downloadable Content, Steam Cloud.

Q

Where to buy a cheap Rule the Waves 3: Expanded Battles Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Rule the Waves 3: Expanded Battles key for as low as £5.30. This deal is available at Difmark and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Rule the Waves 3: Expanded Battles price on PC. Check the Rule the Waves 3: Expanded Battles price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Rule the Waves 3: Expanded Battles Steam price is £15.07. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Rule the Waves 3: Expanded Battles on sale even outside seasonal promotions. We currently detect 14 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Rule the Waves 3: Expanded Battles is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Rule the Waves 3: Expanded Battles has an official page on the Steam Store. You can also buy a Rule the Waves 3: Expanded Battles Steam key from third-party sellers. Our price comparison currently includes 14 offers with Steam DRM. Pick one to ensure your Rule the Waves 3: Expanded Battles download happens on Valve's platform.

Not at this time. Valve marks Rule the Waves 3: Expanded Battles as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

Rule the Waves 3: Expanded Battles does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Rule the Waves 3: Expanded Battles deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Rule the Waves 3: Expanded Battles

1 Difmark Difmark Keyshop
-68% £5.30
2 Eneba Eneba Keyshop
-51% £8.12
-35% £11.10
4 Gamesplanet US Gamesplanet US Official
-15% £12.74
5 GamersGate GamersGate Official
-19% £13.56

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