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Mars Underground is free to play! Download it on Steam and start playing instantly. Looking for Mars Underground DLCs, in-game currency, or cosmetics? Compare 3 offers on XD.deals to find the best deals.

Release: 14 Mar 2019
Publisher: Matt Sanderson
Developer: Matt Sanderson
Free To Play
Metacritic:
tbd tbd
Steam:
Overwhelmingly Positive (49)
Buy in Official Store:
Free
Buy in Keyshops:
$0.65
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Mars Underground
Windows
+2
2d ago
DRM:
Steam
Steam
Free
Historical Low Deal
Historical low
Shop now

Keyshops (2)

DRM:
Steam
Steam
Kinguin
Mars Underground Steam CD Key
Windows
+2
1w ago
DRM:
Steam
Kinguin
$0.65
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Shop now
GameBoost
Mars Underground Steam Key GLOBAL
Windows
+2
1w ago
DRM:
Steam
GameBoost
$0.79
Shop now

About Mars Underground

Mars Underground
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Mars Underground

Mars Underground - about the game

If you like this game look up "Spooky Crew: Mask of the Mysterium" also on Steam. I have a demo out and I'm working really hard on it!

It's your first day at a new school. Every day is your first day at a new school. Every night the world ends.

Mars Underground is an apocalyptic adventure game where you relive the same day over and over. With each cycle new items can be picked up and topics unlocked.​

Take experimental prescription drugs. Talk to a toilet. Get hit by a car. Humiliate yourself repeatedly. All in the name of figuring out what on earth is going on.

  • Solve brain damaging mysteries.

  • Discover all the potential endings.

  • Find new stuff every cycle.

  • Talk, interact, annoy and generally bother the denizens of Phobos City as they try to go about their day.

  • All original, "dynamic" music soundtrack.

  • Can be fully played with either a keyboard, a controller or touch input.
Free To Play Indie Adventure Remote Play Together Single-player Steam Achievements Full controller support Steam Cloud
Interface:
English
Subtitles:
English

Age rating

Unavailable
Metacritic:
tbd tbd
Steam:
Overwhelmingly Positive (49)

System requirements

Minimum:

  • Processor: Intel Core2 Duo or better.
  • Memory: 4 GB RAM
  • Graphics: DirectX 9/OpenGL 4.1 capable GPU.
  • DirectX: Version 9.0
  • Storage: 300 MB available space

Recommended:

  • Processor: Intel Core2 Duo or better.
  • Memory: 4 GB RAM
  • Graphics: DirectX 9/OpenGL 4.1 capable GPU.
  • DirectX: Version 9.0
  • Storage: 300 MB available space

Minimum:

  • OS: Ubuntu 14.04 or Steam OS 2.0 (64 bit)
  • Processor: Intel Core2 Duo or better
  • Memory: 4 GB RAM
  • Storage: 300 MB available space

Recommended:

  • OS: Ubuntu 14.04 or Steam OS 2.0 (64 bit)
  • Processor: Intel Core2 Duo or better
  • Memory: 4 GB RAM
  • Storage: 300 MB available space

Price history

Historical low
Keyshops
-
-
-
Currently lowest: - -
Official Stores
-
-
-
Currently lowest: - -
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FAQ

8 questions

Before you start looking for a cheap Mars Underground CD Key, take a moment to check the essentials. Developed by Matt Sanderson. Published by Matt Sanderson. PC released date: 14 Mar 2019. Genres: Free To Play, Indie, Adventure. Categories: Remote Play Together, Single-player, Steam Achievements, Full controller support, Steam Cloud. Mars Underground reviews: Metascore: tbd. Metacritic users: tbd. Steam reviews: 97% of the 49 user reviews for this game are positive.

Q Can I play Mars Underground on Steam Deck?

Yes, with minor tweaks. Mars Underground Steam Deck compatibility is Playable, so the game works after small adjustments (e.g. selecting a Proton version or using the touchscreen for tiny launcher text). In short: "You can play Mars Underground on Steam Deck".

Yes. A Mars Underground Steam version exists. Pick any offer tagged Steam Key on XD.deals, redeem it in the desktop client, and play Mars Underground on Steam PC.

Yes. Once your Steam key is redeemed, you can launch Mars Underground in Offline Mode via Steam. Your save files will sync the next time you go online.

Yes, you can buy a Mars Underground Steam Key directly on the Steam Store. At XD.deals, we aggregate all available Steam DRM offers so you can compare cheap Mars Underground steam deals in one place.

You'll find every live sale & discount for Mars Underground right here on XD.deals. Our price tracker currently lists 1 official-store offers and 2 keyshop deals. Check the table above for the lowest price, compare against the game's historical low, and set a price alert so you never miss the next drop.

With XD.deals, PC gamers can instantly see where to buy a cheap Mars Underground PC Steam key. Our real-time price-comparison engine and curated coupon database track every official store and trusted keyshop so you dont have to. Right now we detect this game in {1} live offers from stores and keyshops.

Yes. An official Mars Underground Steam store page is live, so you can buy Mars Underground on Steam or buy any Mars Underground PC Steam Key on XD.deals and redeem it instantly.

No - XD.deals itself isn't a store. We're a price-comparison service that tracks the best offers for Mars Underground across official stores and verified keyshops. Click "Shop Now" next to the deal you want, and you'll be redirected to the retailer's website to complete your purchase and receive the key there.

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