Siege of Centauri: Steam price vs key
Siege of Centauri costs €4.53 as a key at BuyCheapKeys, versus a regular price of €15.49 on the Steam Store: you save €10.96 (71% 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 Siege of Centauri now? A steal: buy it now
The key costs €10.96 less than the regular Steam price and is at its lowest recorded price.
Price score: 10/10 · The key is 71% 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 Siege of Centauri keys
1 offer, sorted by price
- €4.53Buy
Siege of Centauri
CheapestSteam keyGlobal-€10.96 compared with the Steam regular price
Siege of Centauri price history
- Steam regular price€15.49
- BuyCheapKeys key€4.53
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 Siege of Centauri key
- 1
Buy the key
Choose the Siege of Centauri 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.
Siege of Centauri FAQ
›How much is Siege of Centauri on Steam?
The regular Steam price of Siege of Centauri is €15.49. At BuyCheapKeys the Steam key costs €4.53, €10.96 less.
›Where to buy Siege of Centauri cheapest?
The cheapest option is the BuyCheapKeys Steam key for €4.53, 71% below the regular Steam price. Instant delivery and it activates on Steam.
›Is the Siege of Centauri key the same game as on Steam?
Yes. When you redeem the key, Siege of Centauri 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 Siege of Centauri at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €4.53 (October 4, 2026). Today it costs €4.53.
›Will the Siege of Centauri 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 Siege of Centauri worth it?
It has 64% positive reviews out of 351 on Steam (“Mixed”), was released in 2019 and is developed by Stardock Entertainment. Genres: Tower Defense, Real Time Tactics, PvE, Competitive.
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Siege of Centauri
€4.53