Buy Source of Madness Steam Key
Source of Madness Steam Key: compare prices from 27 offers (November 2026)
A Source of Madness Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €0.22 (€0.48 with fees, -98%) at Key4Games, 98% below the €19.99 (no fees) Steam price · 16 verified stores, 27 offers in stock · Updated 02h 26min ago.
Steam Key
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Final prices with fees
About Source of Madness
Source of Madness is a side-scrolling dark action roguelite set in the Loam Lands, 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. Uncover the cosmic secrets of the Loam Lands and The Tower of Madness, the moon’s mysterious Citadel.
The horrific monsters you face are never the same, concocted with procedural generation and animated using a neural network AI
Explosive close-combat magic, labyrinthine environmental exploration, powerful loot management and a skill tree filled with abilities, classes, and spells
Rendered in a beautiful AI assisted art style, the fascinating world of the Loam Lands reveals a deep arcane lore as players uncover its many secrets
How much does Source of Madness for PC cost right now?
Source of Madness for PC starts at €0.22 (€0.48 with fees) at Key4Games, a Steam key, which is 98% under the €19.99 (no fees) it costs on the official store.
With 27 offers across 16 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.
It is €0.02 away from its all-time low (€0.20, back in September 2026).
Shared account
Steam Key
Steam Gift
Is it worth buying the Steam Key for Source of Madness now or waiting?
That €1.24 (€1.30 with fees) key is at one of its best prices.
- Those €1.24 (€1.30 with fees) are 53% below what it usually costs, measured on the store price.
- 9 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
- Not counting today, only 103 days out of the 597 days on record were this cheap or cheaper; the lowest it has ever cost is €1.04.
Worked out from 2,426 daily records of the Steam Key for Source of Madness across 17 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
Are these stores safe to buy Source of Madness from?
Worth knowing before you click: Key4Games is cheapest at €0.22 (€0.48 with fees) but has only 37 Trustpilot reviews behind it. If that thin track record bothers you, Kinguin has the same Steam key at €0.18 (€0.54 with fees) with 124.5k reviews and a 4.6 out of 5.
Which Source of Madness format should you buy?
The cheapest offer is already a key for your own account: €0.22 (€0.48 with fees) at Key4Games, so there is no reason to weigh up a shared account here.
The 7 Steam Gift offers are pricier than the key and leave more room for error, because they depend on the region and on Steam friendship.
Can you activate Source of Madness in US?
21 of the 27 offers work on US — the Global ones plus the ones issued for your own region.
Is Source of Madness worth it?
Critics put it at 65 out of 100, though there are only 10 reviews published so far.
Why is there such an expensive Source of Madness offer?
One listing is worth ignoring: the Steam key that Greenmangaming has at €19.99 (no fees) is more than 41 times the cheapest offer and is not what this game costs. The number to work from is €0.22 (€0.48 with fees) at Key4Games.
Most common FAQs when buying Source of Madness for PC in digital format:
Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.
If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.
In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.
Need more help? Use our FAQs.
Source of Madness
Is it worth it?
- 67/100Critics' average scoreOpenCritic · Weak
- 11%Critics recommend it10 critic reviews
- 69%Steam reviewsMixed · 1,422 reviews
What the press says
These smaller issues pale in comparison to what Source of Madness gets right. The gorgeous 2D art style, atmospheric music, and crunchy sound design underpin... Read more
Source of Madness is one game that stands out from the ever-growing roguelike crowd. The very nature of the genre means that there is a... Read more
Source of Madness is a roguelike that has some interesting ideas and a design that mostly works but is bogged down by uninspired combat that... Read more
Visually, this is a cosmic horror fan’s fantasy. Nameless creatures and an accursed world are all procedurally generated for a unique experience in each run.... Read more
I found myself more enamored with the idea of playing Source of Madness than I did with the game itself. Read more
A side-scrolling roguelite with a penchant for randomness that leads more to messy frustrations than the Lovecraftian legends it wants to produce. Read more
Source of Madness is a roguelite with a brilliant potential, which unfortunately feels mostly squandered. It's a fun game mechanically, but repetition kicks in after... Read more
Some good ideas and a deep love for the work of the immortal H.P. Lovecraft are not enough to recommend Source of Madness, since there... Read more
Source of Madness is a side scroller with strong Bloodborne influences. You travel as Acolyte is the dark world to discover exactly what is going... Read more
About the game
* languages with full audio
Related news
Source Of Madness review: machine learning makes this a messy roguelite Read more
Requirements
- OS *: Windows 7+
- Intel i5+
- 2 GB RAM
- Nvidia 450 GTS / Radeon HD 5750 or better
- 500 MB available space
- Additional Notes: DirectX 9.1+ or OpenGL 3.2+
- OS *: Windows 7+
- Intel i5+
- 4 GB RAM
- Nvidia GTX 460 / Radeon HD 7800 or better
- 500 MB available space
- Additional Notes: DirectX 9.1+ or OpenGL 3.2+
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