Buy Mars or Die! PC Key

Looking for a cheap Mars or Die! key? As of 11 Aug 2026 the cheapest key costs $0.66 at Eneba. We compare 11 offers from 11 stores, spanning $0.66 to $19.99. In keyshops the lowest price is $0.66, in official stores it starts at $19.99. 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: 13 Jul 2018
Metacritic:
58 tbd
Steam:
Mixed (30)
Buy in Official Store:
$19.99
Buy in Keyshops:
-97%
$0.66
See price history

Official Stores (2)

DRM:
Steam
Steam
Steam
Mars or Die!
Windows
2w ago
DRM:
Steam
Steam
$19.99
Green Man Gaming
Mars or Die!
Windows
24w ago
DRM:
Steam
Green Man Gaming
$19.99

Keyshops (9)

DRM:
Steam
Steam
Mars or Die! Steam Key GLOBAL
5.0
Windows
1h ago
DRM:
Steam
Eneba
$23.06 ~$0.66
-97%
-10% with XDD10copy
-10% with XDD10copy
Kinguin
Mars or Die! Steam CD Key
Windows
29m ago
DRM:
Steam
Kinguin
$23.06 ~$0.70
-96%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
G2Play
Mars or Die! Steam CD Key
Windows
20h ago
DRM:
Steam
G2Play
$23.11 ~$0.70
-96%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
G2A
Mars or Die! Steam Key GLOBAL
Windows
2d ago
DRM:
Steam
G2A
$19.99 $1.36
-93%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy
GAMIVO
Mars or Die! Global (Steam)
Windows
3d ago
DRM:
Steam
GAMIVO
$19.99 $1.49
-92%
-9% with XDDealscopy
-9% with XDDealscopy
CJS-CDKeys
Mars or Die! Steam Key (GLOBAL)
Windows
12h ago
DRM:
Steam
CJS-CDKeys
$22.62 ~$1.69
-92%
Difmark
Mars or Die (PC)
Windows
2w ago
DRM:
Steam
Difmark
$19.99 $2.91
-85%
-15% with XDDEALScopy
-15% with XDDEALScopy

About Mars or Die!

Mars or Die! - about the game

Mars or Die! is an action strategy indie game for PC that blends tower defense mechanics with roguelite survival elements. Players command two specialized explorers on Mars, managing resource gathering, base construction, and combat against waves of Martian enemies while following a satirical military narrative.

Gameplay

The core loop revolves around controlling Scout B. Bean and Major B. Bob at the same time. Scout Bean moves quickly and uses an energy repulsion shield to block attacks, while Major Bob provides slower but precise ranged firepower. Both characters explore the Martian surface, collect resources, and upgrade their capabilities through gathered items.

Base building forms a central pillar. Players deploy automatic extractors for mining, O2 generators for life support, armories for equipment, single-barrel and double-barrel defense turrets for automated fire, and a flag to claim territory. These structures must be placed strategically to hold off enemy assaults while the duo completes objectives.

Combat emphasizes positioning and timing. One-eyed Martians appear in varying sizes and numbers, requiring players to balance direct control of the two characters with the output from defensive turrets. Resource management ties directly into survival, as players gather materials to sustain operations and expand outposts.

Game Modes

The game features a structured campaign divided into nine missions. Each mission advances the invasion plan through specific scouting, fighting, and building goals, with increasing difficulty as Martian resistance grows.

Endless mode provides an alternative for extended play. It removes the mission limits and allows players to entrench positions indefinitely against continuous enemy waves, focusing on long-term base expansion and survival.

Both modes incorporate the same core systems of character control, resource collection, and turret placement, but the campaign emphasizes progression through the nine objectives while endless mode tests endurance and optimization.

Setting and Characters

The narrative follows a humorous, over-the-top military theme centered on conquering Mars under the direction of a self-proclaimed supreme leader. Scout B. Bean stands out for speed and defensive capabilities, with personal interests in flowers and beans. Major B. Bob excels in marksmanship and moves deliberately, driven by dedication to the cause along with tastes for chocolate and ballet.

Enemies consist entirely of one-eyed Martian natives that attack in groups. The setting remains focused on the red planet's surface, where players establish defensible outposts amid hostile terrain and constant threats.

Is It Worth Playing?

Mars or Die! suits players who enjoy combining direct character control with tower defense setup in a singleplayer experience. The dual-character system adds a layer of multitasking that distinguishes it from standard tower defense titles.

The nine-mission campaign delivers a complete story arc with clear objectives, while endless mode extends replayability for those seeking longer sessions. Base-building options like extractors, generators, armories, and the two turret variants provide concrete tools for adapting to different enemy pressures.

Reception centers on its unique hybrid approach and satirical tone. Those interested in indie action-strategy games with roguelite progression and simultaneous unit control will find the mechanics engaging, particularly if they appreciate managing both mobile fighters and static defenses in one session.

Interface:
GermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilRussianTurkishSimplified ChineseTraditional Chinese
Audio:
English
Subtitles:
GermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilRussianTurkishSimplified ChineseTraditional Chinese

Age rating

Unavailable
Metacritic:
58 tbd
Steam:
Mixed (30)

Minimum:

  • Processor: i3 2.6Ghz
  • Memory: 4 GB RAM
  • Graphics: GTX 560 or equivalent
  • DirectX: Version 11
  • Storage: 4 GB available space

Recommended:

  • OS: Windows 10
  • Processor: i5 2.6Ghz
  • Memory: 8 GB RAM
  • Graphics: GTX 960 or equivalent
  • DirectX: Version 11
  • Storage: 8 GB available space
Historical low
Price history from official stores
$4.99
Steam
1 months ago
Price history from keyshops
$0.65
Eneba
1 weeks ago

FAQ

9 questions

Before you start looking for a cheap Mars or Die! PC key, check the essentials. Developed by 34BigThings srl. Published by 34BigThings srl. PC released date: 13 Jul 2018. Genres: Action, Strategy, Indie. Categories: Family Sharing, Single-player, Steam Achievements, Full controller support, Steam Cloud, Steam Leaderboards.

Q

Where to buy a cheap Mars or Die! Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Mars or Die! key for as low as $0.66. This deal is available at Eneba 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 Mars or Die! price on PC. Check the Mars or Die! price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Mars or Die! Steam price is $19.99. 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 Mars or Die! on sale even outside seasonal promotions. We currently detect 11 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, Mars or Die! 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 $0.65 to $19.99. We have recorded offers from 12 stores in total, and from 2 in the most recent reading. The cheapest offer came most often from Kinguin: 59 of 172 days with data. The current price sits mid-range against its own history, cheaper on 74% of days with data.

Yes. Mars or Die! has an official page on the Steam Store. You can also buy a Mars or Die! Steam key from third-party sellers. Our price comparison currently includes 11 offers with Steam DRM. Pick one to ensure your Mars or Die! download happens on Valve's platform.

Not at this time. Valve marks Mars or Die! 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 Mars or Die! 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 Mars or Die! 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 Mars or Die!

1 Eneba Eneba Keyshop
-97% $0.66
2 Kinguin Kinguin Keyshop
-96% $0.70
3 G2Play G2Play Keyshop
-96% $0.70
4 G2A G2A Keyshop
-93% $1.36
5 GAMIVO GAMIVO Keyshop
-92% $1.49

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