Buy Steam Marines PC Key

Looking for a cheap Steam Marines key? As of 23 Aug 2026 the cheapest key costs £0.75 at Difmark. We compare 10 offers from 10 stores, spanning £0.75 to £14.99. In keyshops the lowest price is £0.75, in official stores it starts at £14.99. With this many sellers the gap between the extremes is often several times over, so picking the store matters more here than waiting for a sale. 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.

Release: 24 Sept 2014
Worthless Bums
Metacritic:
tbd 5.7
Steam:
Mixed (220)
Buy in Official Store:
£14.99
Buy in Keyshops:
-94%
£0.75
Historical low
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Steam Marines
Windows
+3
1y ago
DRM:
Steam
Steam
£14.99

Keyshops (9)

DRM:
Steam
Steam
Difmark
Steam Marines (PC)
Windows
+3
5w ago
DRM:
Steam
Difmark
£14.99 ~£0.75
Historical Low Deal
Historical low
-94%
-15% with XDDEALScopy
-15% with XDDEALScopy
G2Play
Steam Marines Steam CD Key
Windows
+3
1d ago
DRM:
Steam
G2Play
£17.12 ~£0.90
-94%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Steam Marines Steam CD Key
Windows
+3
1d ago
DRM:
Steam
Kinguin
£17.12 ~£0.90
-94%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Driffle
Steam Marines (Global) (PC / Mac / Linux) - Steam - Digital Key
Windows
+3
4w ago
DRM:
Steam
Driffle
£1.08 ~£1.01
-6%
-6% with XDDEALS6copy
-6% with XDDEALS6copy
Gameseal
Steam Marines (PC) Steam Key - GLOBAL
Windows
+3
4d ago
DRM:
Steam
Gameseal
£14.99 ~£1.02
-93%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
Steam Marines (PC) Steam Key GLOBAL
5.0
Windows
+3
6h ago
DRM:
Steam
Eneba
£17.12 ~£1.06
-93%
-10% with XDD10copy
-10% with XDD10copy
GameBoost
Steam Marines
Windows
+3
19w ago
DRM:
Steam
GameBoost
£17.39 ~£1.23
-92%

About Steam Marines

Steam Marines - about the game

Steam Marines is a squad-based roguelike that blends strategy and RPG elements on a PC platform. Set aboard a steampunk spaceship under siege, the game tasks players with commanding a small team of marines through procedurally generated decks filled with enemies. Tactical positioning and resource management drive every decision as the squad fights toward elevators on each level while dealing with permanent consequences for losses.

Gameplay

The core loop revolves around turn-based squad commands where up to four marines operate with individual action points, gear, and talents. Positioning proves essential because even isolated threats can overwhelm an unprepared unit. Players choose between long-range sniping, funneling foes into narrow passages for area attacks, or adapting to destructible walls and elevation changes that alter line of sight and movement options.

Five distinct marine classes provide variety, including options focused on ranged firepower, shotgun knockback, or grenade deployment. Each marine advances through four ranks that unlock talent trees, while five perks allow further specialization. Captured exoskeleton suits from defeated enemies add flamethrower capabilities or close-quarters options like direct physical strikes. Deck bosses appear as challenging encounters yet remain vulnerable to the same positioning and resource tactics used against regular foes.

Procedural generation creates five human ship decks plus one alien deck, each featuring randomized layouts, weapons, armor, and enemy compositions. High and low ground, along with destructible elements, introduce fresh tactical considerations on every run. Survivors may appear to bolster the squad, though nothing guarantees their presence after a marine falls permanently.

Game Modes

Steam Marines centers on single-player progression runs through the spaceship decks. Performance receives an overall score at the end of each attempt, encouraging optimization across multiple playthroughs. New Game Plus activates after clearing thirty levels and introduces heightened challenges for returning players.

Four difficulty settings scale the experience, with the highest reserved for those seeking extreme demands. The structure emphasizes repeated attempts under permadeath rules rather than separate named modes, keeping focus on adapting squad builds and surviving the next deck.

Key Mechanics and Progression

Resource awareness extends beyond action points to include careful management of limited ammunition and abilities across turns. Marines gain experience and promotions that expand their capabilities, allowing builds that emphasize either distance engagement or aggressive frontline pressure. Randomized loot and enemy placements ensure no two deck traversals feel identical, while the alien deck introduces distinct environmental and creature variations.

The absence of immunities on bosses reinforces consistent tactical principles throughout the experience. Players must weigh risks when advancing marines or holding positions, as a single misstep can end a promising run without recovery options.

Is It Worth Playing?

Steam Marines delivers a focused tactical roguelike experience for players who value precise positioning and permanent squad losses over forgiving progression. Its mixed reception reflects the steep learning curve and unforgiving nature, which some appreciate for the tension they create while others find the systems limiting after initial runs.

The game suits those drawn to strategy titles with RPG customization and procedural variety rather than narrative depth or multiplayer features. Availability on PC keeps it accessible for fans of older indie roguelikes who enjoy experimenting with class combinations and difficulty scaling in New Game Plus. Those seeking modern polish or frequent content updates may find the 2013 release dated, yet the core loop of deck-clearing tactics remains intact for dedicated players.

Interface:
English

Age rating

Unavailable
Metacritic:
tbd 5.7
Steam:
Mixed (220)

Minimum:

  • Processor: 800 MHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL supported graphics card with 32 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card

Recommended:

  • Processor: 2 GHz
  • Memory: 2 GB RAM
  • Graphics: OpenGL supported graphics card with 128 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card; Widescreen monitor resolution

Minimum:

  • OS: Mac OS X 10.7 through 10.14
  • Processor: 800 MHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL supported graphics card with 32 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card

Recommended:

  • OS: Mac OS X 10.7 through 10.14
  • Processor: 2 GHz
  • Memory: 2 GB RAM
  • Graphics: OpenGL supported graphics card with 128 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card; Widescreen monitor resolution

Minimum:

  • OS: Ubuntu 12.04 LTS
  • Processor: 800 MHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL supported graphics card with 32 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card

Recommended:

  • OS: Ubuntu 12.04 LTS
  • Processor: 800 MHz
  • Memory: 1 GB RAM
  • Graphics: OpenGL supported graphics card with 32 MB RAM
  • Storage: 120 MB available space
  • Additional Notes: OpenAL supported sound card
Historical low
Price history from official stores
£14.99
Steam
1 years ago
Price history from keyshops
£0.75
Difmark
1 months ago

FAQ

9 questions

Before you start looking for a cheap Steam Marines PC key, check the essentials. Developed by Worthless Bums. PC released date: 24 Sept 2014. Genres: Strategy, Indie, RPG. Categories: Family Sharing, Steam Trading Cards, Single-player, Steam Achievements, Partial Controller Support.

Q

Where to buy a cheap Steam Marines Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Steam Marines key for as low as £0.75. 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 Steam Marines price on PC. Check the Steam Marines price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Steam Marines Steam price is £14.99. 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 Steam Marines on sale even outside seasonal promotions. We currently detect 10 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, Steam Marines is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

The spread between offers was wide: from £0.75 to £14.99. We have recorded offers from 10 stores in total, and from 1 in the most recent reading. The cheapest offer came most often from Eneba: 56 of 162 days with data. The current price sits mid-range against its own history, cheaper on 33% of days with data.

Yes. Steam Marines has an official page on the Steam Store. You can also buy a Steam Marines Steam key from third-party sellers. Our price comparison currently includes 10 offers with Steam DRM. Pick one to ensure your Steam Marines download happens on Valve's platform.

Yes, with minor tweaks. Steam Marines is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Steam Marines on Steam Deck.

According to our data Steam Marines 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 Steam Marines 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 Steam Marines

1 Difmark Difmark Keyshop
-94% £0.75
2 G2Play G2Play Keyshop
-94% £0.90
3 Kinguin Kinguin Keyshop
-94% £0.90
4 Driffle Driffle Keyshop
-6% £1.01
5 Gameseal Gameseal Keyshop
-93% £1.02

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