Mars Base: Steam price vs key
Mars Base costs €4.26 as a key at BuyCheapKeys, versus a regular price of €18.49 on the Steam Store: you save €14.23 (77% less). The key activates on your Steam account and it's exactly the same game (prices from October 3, 2026).
- Instant deliveryKey by email and in your account
- Full guaranteeReplacement or refund
- Secure paymentCard, PayPal, Google Pay, Apple Pay
- Activates on SteamSame game in your library
- Up to 4% cashbackWith the VIP Club
Should I buy Mars Base now? A steal: buy it now
The key costs €14.23 less than the regular Steam price and is at its lowest recorded price.
Price score: 10/10 · The key is 77% below the regular Steam price.
The same game, for less
A Steam key gives you exactly the same as buying on Steam. Only the price changes.
Available Mars Base keys
1 offer, sorted by price
- €4.26Buy
Mars Base
CheapestSteam keyGlobal-€14.23 compared with the Steam regular price
Mars Base price history
- Steam regular price€18.49
- BuyCheapKeys key€4.26
We've been tracking this game since October 3, 2026. The chart will appear once there are a few days of data.
How to activate the Mars Base key
- 1
Buy the key
Choose the Mars Base offer and pay. You get the key instantly.
- 2
Open Steam
Go to “Games” › “Activate a Product on Steam”.
- 3
Redeem and play
Paste the key and the game stays in your library forever.
Mars Base FAQ
›How much is Mars Base on Steam?
The regular Steam price of Mars Base is €18.49. At BuyCheapKeys the Steam key costs €4.26, €14.23 less.
›Where to buy Mars Base cheapest?
The cheapest option is the BuyCheapKeys Steam key for €4.26, 77% below the regular Steam price. Instant delivery and it activates on Steam.
›Is the Mars Base key the same game as on Steam?
Yes. When you redeem the key, Mars Base is added to your Steam account with achievements, cloud saves and updates, just as if you bought it on Steam.
›What is the lowest price for Mars Base at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €4.26 (October 3, 2026). Today it costs €4.26.
›Will the Mars Base key work in my country?
We list Global and Europe region keys. Each BuyCheapKeys product page tells you whether it can be activated in your country before you buy.
›Is it safe to buy from BuyCheapKeys?
Yes. Delivery is instant by email and in your account, we accept card, PayPal, Google Pay and Apple Pay, and every purchase is covered by a replacement or refund guarantee.
›Does Mars Base work on Steam Deck?
Valve rates it “Playable” on Steam Deck. Once the key is activated on Steam you can play it on Steam Deck just like on PC.
›Is Mars Base worth it?
It has 51% positive reviews out of 37 on Steam (“Mixed”), was released in 2022 and is developed by Khuong Le. Genres: Farming Sim, Exploration, Mars, Pixel Graphics.
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Mars Base
€4.26