Source of Madness
All offers (22)
Compare the platform, region and delivery before you buy.
Standard Edition 16 offers · EU & Global
Source of Madness PC Steam CD KeyActivation keySteamGlobalLowest price€0.22+ payment feeView deal
Source of Madness (PC) Steam Key - GLOBALActivation keySteamGlobal€0.24+ service feeView deal
Source of Madness GlobalActivation keySteamGlobal€0.25+ service feeView deal
Source of Madness (Global) (PC) - Steam - Digital KeyActivation keySteamGlobal€0.43no Plus, no ProtectView deal
Source of Madness (PC) Steam Key GLOBALActivation keySteamGlobal€0.43+ fee possibleView deal- Source of Madness (PC) Steam Key EUROPEActivation keySteamEurope€0.64+ fee possibleView deal
- Source of Madness EU PC Steam CD KeyActivation keySteamEurope€0.66+ payment feeView deal
Source of Madness (PC) - Steam Key - GLOBALActivation keySteamGlobal€0.84+ service feeView deal
Official store Steam · price for Germany
Steam store pageDirect purchaseSteamGermany€19.99No feeView on Steam
Other regions 3 offers
Sold for Latin America, North America, Asia, the Middle East, Russia or an unspecified region. These keys usually cannot be activated from Germany.
You buy directly from the store. "+ service fee" or "+ payment fee" means the store adds a fee at checkout; you see the final price there before you pay. We may earn a commission when you buy through our links.
Best price over the last 32 days
- Lowest €0.229 Nov 2026
- Highest €0.4911 Oct 2026
- Today €0.22
The cheapest EU or Global key per day across all compared stores; the dashed line is the Steam price.
Trailer & screenshots
Buy Source of Madness key: current price comparison
Where is the Source of Madness key cheapest?
The cheapest Source of Madness key that activates in the EU currently costs €0.22 at Kinguin. Keyfinder compares 22 offers from 8 shops for this price. That is 99% less than the Steam price of €19.99. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.
What does the Source of Madness key cost on each platform?
The cheapest key per platform right now: PC €0.22 at Kinguin and Xbox €1.80 at Kinguin.
What was the lowest Source of Madness key price in the last 32 days?
€0.22 on 9 Nov 2026, for the standard edition that activates in the EU. The highest daily low in that time was €0.49 on 11 Oct 2026; today the cheapest key costs €0.22.
Which Source of Madness keys activate in the EU?
19 offers are marked EU or Global and activate in Germany and the rest of the EU. Keys for other regions are listed separately. The keys on offer are for Steam and Xbox.
How do I activate the Source of Madness key?
The cheapest key activates on Steam. You redeem it there with the code the shop sends you after you pay.
Is it safe to buy a Source of Madness key from Kinguin?
Before you pay, check three things on the offer: the region (EU or Global for Germany), the edition and any fee added at checkout. Keyfinder shows all three on every offer. Our Kinguin check covers who runs the shop, its fees and its regions.
Games like Source of Madness
Games in similar genres.
About Source of Madness
Source of Madness is a side-scrolling dark action roguelite set in a twisted Lovecraftian inspired world powered by procedural generation and AI machine learning. Take on the role of a new Acolyte as they embark on a nightmarish odyssey.
- Developer
- Carry Castle
- Publisher
- Thunderful Publishing
- Release date
- 11 May 2022
- Steam
- View on Steam