Buy Day of Defeat Source Steam Key
Day of Defeat Source Steam Key: compare prices from 4 offers (October 2026)
A Day of Defeat Source 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 €8.09 (€9.08 with fees, -6%) at Kinguin, Steam Gift format · Cheapest official key: €9.69 (no fees) · 4 verified stores, 4 offers in stock · Updated 07h 30min ago.
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Steam Key
Prices change depending on the selected payment method.
Final prices with fees
How much does Day of Defeat Source for PC cost right now?
Day of Defeat Source for PC starts at €8.09 (€9.08 with fees) at Kinguin, a Steam gift, which is 6% under the €9.69 (no fees) it costs on the official store.
That €8.09 (€9.08 with fees) already includes the OCTGOC10 coupon, so apply it at checkout or the store will show you a higher price.
Supply is thin — 4 offers from 4 stores — and thin supply keeps prices steady rather than falling.
That puts it 1% under its average of €9.75 since 2017, so today is a better entry point than most days of its life.
Steam Key
Steam Gift
Is it worth buying the Steam Key for Day of Defeat Source now or waiting?
That €9.69 (no fees) key is expensive for what it usually costs.
- Those €9.69 (no fees) are 17% above what it usually costs, measured on the store price.
- Only 2 stores sell the Steam Key, and with that little competition the price barely moves.
- Across the 1,740 days we have tracked it, it has only been pricier than today on 307 days. The lowest it has ever cost is €3.32.
Worked out from 2,119 daily records of the Steam Key for Day of Defeat Source across 9 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.
Which Day of Defeat Source format should you buy?
By format: Steam Gift from €8.09 (€9.08 with fees) and Steam Key from €9.69 (no fees).
Can you activate Day of Defeat Source in US?
All 4 offers are Global, so the code redeems on any account no matter where it was created.
Most common FAQs when buying Day of Defeat Source 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.
Day of Defeat Source
Is it worth it?
- 90%Steam reviewsVery Positive · 16,051 reviews
- 5.0/5GoCDKeys users1 ratings →
Is it alive?
- Watching now on Twitch
- Live channels
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
Added to the somewhat confusing gameplay and rigid mechanics are constant framerate drops, especially when multiple monsters appear on screen. Regardless, the blend of Lovecraftian... 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
Requirements
Minimum: 1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection
Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectX® 9 level Graphics Card, Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection
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