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Buy The Sinking City 2 – Chthonic Arsenal PC Key
This content requires the base game: The Sinking City 2
Where to buy The Sinking City 2 – Chthonic Arsenal at the best price? As of 5 Sept 2026 this title has one offer, £4.59 at Steam. On PC that is the usual case, because only about one title in four gets a keyshop offer and the rest stay with the platform store. There is nothing to compare, but we track this price daily and show how it stands against earlier readings, and a price alert will tell you about any drop. This is an add-on, so you also need the base game to play it. That costs £33.25 today, which puts the pair at £37.84. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.
Keyshops
Unavailable
Buy in Official Store:
£4.59
Buy in Keyshops:
See price history
About The Sinking City 2 – Chthonic Arsenal
The Sinking City 2 – Chthonic Arsenal - about the game
Face Arkham in style. Wield the Chthonic Arsenal: the “Shale Mary” handgun, the “Breakwater” shotgun, and the “Tektite Tommy” SMG, each with its own look and features.
Interface:
ArabicCzechGermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilTurkishUkrainianSimplified ChineseTraditional Chinese
Audio:
English
Subtitles:
ArabicCzechGermanEnglishSpanish - SpainFrenchItalianJapaneseKoreanPolishPortuguese - BrazilTurkishUkrainianSimplified ChineseTraditional Chinese
Age rating
Historical low
Price history from official stores
£4.59
Steam
yesterday
Price history from keyshops
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FAQ
8 questionsBefore you start looking for a cheap The Sinking City 2 – Chthonic Arsenal PC key, check the essentials. Developed by Frogwares. Published by Frogwares. PC released date: 02 Sept 2026. Genres: Action, Adventure. Categories: Family Sharing, Single-player, Downloadable Content, Steam Achievements, Full controller support, Steam Cloud, Custom Volume Controls, Stereo Sound, Adjustable Difficulty, DualShock Controller Support, DualSense Controller Support.
Where to buy a cheap The Sinking City 2 – Chthonic Arsenal Steam key or CD key?
Using our price comparison and verified discount codes, you can buy a The Sinking City 2 – Chthonic Arsenal key for as low as £4.59. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest The Sinking City 2 – Chthonic Arsenal price on PC. Check the The Sinking City 2 – Chthonic Arsenal price history to buy at the best moment.
What is the latest The Sinking City 2 – Chthonic Arsenal Steam price?
As of our last update (we refresh Steam pricing multiple times a day), the The Sinking City 2 – Chthonic Arsenal Steam price is £4.59. You can save an extra ~6% by paying with a discounted Steam gift card.
The Sinking City 2 – Chthonic Arsenal PC sale & discount - all in one place
Our price tracker covers both official retailers and key marketplaces, so you can find The Sinking City 2 – Chthonic Arsenal on sale even outside seasonal promotions. We currently detect 1 active offer from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.
Does The Sinking City 2 – Chthonic Arsenal have GeForce NOW support?
Based on our data, The Sinking City 2 – Chthonic Arsenal is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.
Can I buy The Sinking City 2 – Chthonic Arsenal on Steam?
Yes. The Sinking City 2 – Chthonic Arsenal has an official page on the Steam Store. You can also buy a The Sinking City 2 – Chthonic Arsenal Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your The Sinking City 2 – Chthonic Arsenal download happens on Valve's platform.
Can I play The Sinking City 2 – Chthonic Arsenal on Steam Deck?
Not at this time. Valve marks The Sinking City 2 – Chthonic Arsenal as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.
Is The Sinking City 2 – Chthonic Arsenal on PC Game Pass or other subscriptions?
According to our data The Sinking City 2 – Chthonic Arsenal is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.
Can I buy The Sinking City 2 – Chthonic Arsenal here?
No - XD.deals is not a store. We are a price-comparison service that tracks the best The Sinking City 2 – Chthonic Arsenal deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.
Best prices for The Sinking City 2 – Chthonic Arsenal
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