Sentinel 4: Dark Star: Steam price vs key
Sentinel 4: Dark Star costs €2.77 as a key at BuyCheapKeys, versus a regular price of €6.99 on the Steam Store: you save €4.22 (60% less). The key activates on your Steam account and it's exactly the same game (prices from October 4, 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 Sentinel 4: Dark Star now? A steal: buy it now
The key costs €4.22 less than the regular Steam price and is at its lowest recorded price.
Price score: 10/10 · The key is 60% 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 Sentinel 4: Dark Star keys
1 offer, sorted by price
- €2.77Buy
Sentinel 4: Dark Star
CheapestSteam keyGlobal-€4.22 compared with Steam
Sentinel 4: Dark Star price history
- Steam€6.99
- BuyCheapKeys key€2.77
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 Sentinel 4: Dark Star key
- 1
Buy the key
Choose the Sentinel 4: Dark Star 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.
Sentinel 4: Dark Star FAQ
›How much is Sentinel 4: Dark Star on Steam?
The regular Steam price of Sentinel 4: Dark Star is €6.99. At BuyCheapKeys the Steam key costs €2.77, €4.22 less.
›Where to buy Sentinel 4: Dark Star cheapest?
The cheapest option is the BuyCheapKeys Steam key for €2.77, 60% below the regular Steam price. Instant delivery and it activates on Steam.
›Is the Sentinel 4: Dark Star key the same game as on Steam?
Yes. When you redeem the key, Sentinel 4: Dark Star 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 Sentinel 4: Dark Star at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €2.77 (October 4, 2026). Today it costs €2.77.
›Will the Sentinel 4: Dark Star 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.
›Is Sentinel 4: Dark Star worth it?
It has 79% positive reviews out of 43 on Steam (“Mostly Positive”), was released in 2015 and is developed by Origin8 Technologies Ltd. Genres: Strategy, Indie, Sci-fi, Tower Defense.
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Sentinel 4: Dark Star
€2.77