Sins of a Solar Empire II: Steam price vs key
Sins of a Solar Empire II costs €17.60 as a key at BuyCheapKeys, versus a regular price of €50.99 on the Steam Store: you save €33.39 (65% 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 Sins of a Solar Empire II now? A steal: buy it now
The key costs €33.39 less than the regular Steam price and is at its lowest recorded price.
Price score: 10/10 · The key is 65% 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 Sins of a Solar Empire II keys
2 offers, sorted by price
Sins of a Solar Empire II price history
- Steam regular price€50.99
- BuyCheapKeys key€17.60
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 Sins of a Solar Empire II key
- 1
Buy the key
Choose the Sins of a Solar Empire II 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.
Sins of a Solar Empire II FAQ
›How much is Sins of a Solar Empire II on Steam?
The regular Steam price of Sins of a Solar Empire II is €50.99. At BuyCheapKeys the Steam key costs €17.60, €33.39 less.
›Where to buy Sins of a Solar Empire II cheapest?
The cheapest option is the BuyCheapKeys Steam key for €17.60, 65% below the regular Steam price. Instant delivery and it activates on Steam.
›Is the Sins of a Solar Empire II key the same game as on Steam?
Yes. When you redeem the key, Sins of a Solar Empire II 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 Sins of a Solar Empire II at BuyCheapKeys?
The lowest recorded price for the key at BuyCheapKeys is €17.60 (October 3, 2026). Today it costs €17.60.
›Will the Sins of a Solar Empire II 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 Sins of a Solar Empire II 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 Sins of a Solar Empire II worth it?
It has 83% positive reviews out of 7,179 on Steam (“Very Positive”), was released in 2024 and is developed by Ironclad Games Corporation. Genres: Space, Strategy, RTS, 4X.
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Sins of a Solar Empire II
€17.60