Buy Command:MO - The Silent Service PC Key

This content requires the base game: Command: Modern Operations

Where to buy Command:MO - The Silent Service at the best price? As of 20 Aug. 2026 the cheapest option is C$28.72 at Steam, out of 4 offers across 4 stores. The range reaches C$180.82, so the distance between the first and the last listing can be wide even with a handful of sellers. You activate the key in Steam or another client, and it is worth checking the price history first. This game has been cheaper before, on 98% of the days we have data for. A price alert will let you know when the next drop comes. This is an add-on, so you also need the base game to play it. That costs C$18.32 today, which puts the pair at C$47.04. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.

Metacritic:
tbd tbd
Buy in Official Store:
C$28.72
Buy in Keyshops:
C$170.24
In keyshops, it was cheaper on 98% of days with data.
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Command:MO - The Silent Service
1w ago
DRM:
Steam
Steam
C$28.72

Keyshops (3)

DRM:
Steam
Steam
G2Play
Command:MO - The Silent Service DLC PC Steam CD Key
11h ago
DRM:
Steam
G2Play
~C$170.24
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Command:MO - The Silent Service DLC PC Steam CD Key
11h ago
DRM:
Steam
Kinguin
~C$170.24
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Command:MO - The Silent Service (DLC) (PC) Steam Key GLOBAL
5.0
13h ago
DRM:
Steam
Eneba
C$189.55 ~C$180.82
-4%
-10% with XDD10copy
-10% with XDD10copy

About Command:MO - The Silent Service

Command:MO - The Silent Service - about the game
"There are submarines, and then there are targets..."

They are out there, in the vast expanse of the sea. You don't see them, and you're not supposed to; they reveal themselves only reluctantly, when in port or transiting a shallow passage. They've grown from an unsuccessful, almost laughable nuisance, to a practical weapon in fleet battles, to the scourge of seaborne transport lines, and ultimately to mobile undersea fortresses that can end life on the planet in less than 10 minutes. A junior branch compared to their centuries-old naval surface warfare counterparts, submarines have nevertheless seen and done it all, both in peacetime and wartime. And it takes a special kind of people to handle and operate them - for one, claustrophobics and fragile nerves need not apply. These people often share more in common with their direct adversaries from foreign, even hostile nations than with their comrades in the other services. Like their boats, they are discreet, persistent and deadly. They are submariners. They are The Silent Service.

Undersea warfare from post-WW2 to the present: Explore the progression of submarine operations from the Korean War right up to today's headlines. Witness first-hand how technological advances like the snorkel, nuclear power, cruise and ballistic missiles, silencing measures and advanced sonars, computers and torpedoes have radically expanded both the remit and capabilities of the submarine platform - and how its hunters on the surface and in the air improved their own gear and tactics to keep up in the race.

Stars and workhorses: Take charge of some of the most famous boats and classes of the post-war period - and some that you may have never heard of. USS Nautilus, the first-ever nuclear-powered submarine - and her counterparts beyond the Iron Curtain, the November-class. HMS Swiftsure, nemesis of the Soviet Northern Fleet in '77. USS Parche, the most highly decorated vessel in the US Navy. Sturgeon-, Los Angeles- and Seawolf-class, frontline of the US sub force from the 1960s to the late-00s. Soviet/Russian conventional and nuclear-powered attack subs, worthy adversaries of NATO during the Cold War and beyond. Giants of the deep like the carrier-killer Oscar-class and the ballistic missile-toting Delta-class. And much more...

The busiest platform at sea: If you thought subs are only good for sinking ships and other subs, prepare to be amazed. Lay minefields right on the enemy's backyard with them being none the wiser. Launch carefully-plotted cruise missile attacks against defended land targets. Creep up to surface vessels close enough that you can take underwater hull and screw photos - and remain undetected. Detect and record sensitive electronic emissions, the ones that radar/comms operators dare activate only when they think nobody's around to sniff. Provide unseen escort to merchant ships in the middle of a crisis. Shower distant land targets with ballistic missiles armed with multiple nuclear warheads. Tap undersea communications cables in the worst moment of the Cold War. Covertly deliver special-operations teams ashore, or deploy swimmer delivery vehicles (SDVs) against capital ships to eliminate them out of the blue. And of course hunt down anything on the sea surface or underneath it, from miniscule patrol boats all the way to battleships, supercarriers and strategic missile submarines, using an array of torpedoes, missiles and other means. The depths are your domain - and your playground.

The Silent Service is a DLC for Command: Modern Operations: Eighteen scenarios, played either in ascending difficulty or chronological order, walk you through the nuances of modern submarine operations, in control of a wide range of submarine classes from both the East and West, in conditions ranging from peacetime to crisis to all-out war.

Can you fill the shoes of the legends of The Silent Service?

FEATURES:

* A DLC for Command: Modern Operations

* 18 intense standalone scenarios written by Rory Noonan, CMO community veteran: Each scenario is accompanied by era-authentic mission briefings placing you into the scene of action

* Underwater warfare utilizing CMO simulation engine - with wrinkles specific to the submarine domain
Interface:
English
Metacritic:
tbd tbd

Minimum:

  • Processor: 1 GHz (Dual-core Pentium and above recommended)
  • Memory: 1 GB RAM
  • Graphics: DirectX 9.0c compatible video card with 16 MB RAM
  • DirectX: Version 9.0c
  • Storage: 10 GB available space
  • Additional Notes: Compatible sound card; Requires Windows Media Player

Recommended:

  • Processor: 1 GHz (Dual-core Pentium and above recommended)
  • Memory: 1 GB RAM
  • Graphics: DirectX 9.0c compatible video card with 16 MB RAM
  • DirectX: Version 9.0c
  • Storage: 10 GB available space
  • Additional Notes: Compatible sound card; Requires Windows Media Player
Historical low
Price history from official stores
C$14.36
Steam
2 weeks ago
Price history from keyshops
C$14.75
Yuplay
4 months ago
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FAQ

9 questions

Before you start looking for a cheap Command:MO - The Silent Service PC key, check the essentials.

Q

Where to buy a cheap Command:MO - The Silent Service Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Command:MO - The Silent Service key for as low as C$28.72. This deal is available at Steam 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 Command:MO - The Silent Service price on PC. Check the Command:MO - The Silent Service price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Command:MO - The Silent Service Steam price is C$28.72. 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 Command:MO - The Silent Service on sale even outside seasonal promotions. We currently detect 4 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, Command:MO - The Silent Service is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

The cheapest offer came most often from Yuplay: 92 of 133 days with data. The current price is high against its own history: it was cheaper on 98% of days with data. Half of all readings fell between C$17.17 and C$147.09. The spread between offers was wide: from C$14.36 to C$180.33.

Yes. Command:MO - The Silent Service has an official page on the Steam Store. You can also buy a Command:MO - The Silent Service Steam key from third-party sellers. Our price comparison currently includes 4 offers with Steam DRM. Pick one to ensure your Command:MO - The Silent Service download happens on Valve's platform.

Not at this time. Valve marks Command:MO - The Silent Service 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.

According to our data Command:MO - The Silent Service is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Command:MO - The Silent Service 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 Command:MO - The Silent Service

1 Steam Steam Official
C$28.72
2 G2Play G2Play Keyshop
C$170.24
3 Kinguin Kinguin Keyshop
C$170.24
4 Eneba Eneba Keyshop
-4% C$180.82

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