Serious Sam Double D XXL — cheap CD keys, compare prices
Is it worth buying?
Reviews are solid (Steam 82%) · The price is well above its low (was €0.33) — worth waiting for a drop or setting an alert Notify me on a drop
About the game
An action run-and-gun game in the Serious Sam universe with the revolutionary Gunstacker system that lets players fire all weapons at once, delivering chaotic, over-the-top mayhem against enemy hordes.
Did you know?
Double D XXL is a collaboration between Mommy's Best Games and Croteam, published by Devolver Digital in 2011 as a Serious Sam spin-off.
Best price today
€0.64
· · check “Region” on the seller’s page
Gamivo · Marketplace · Steam
Global key · check “Region” on the seller’s page
You pay at Gamivo · the seller sends the key · same price as on their site
Notify me when it drops below €0.58
- On Steam
- €9.75−93 % here
- all-time low
- €0.335 Jul
- Official now
- €9.75Steam
- Average low, 5 mo.
- €0.44
The cheapest Serious Sam Double D XXL key right now costs €0.64 at Gamivo — the best of 9 compared offers. The cheapest official store price is €9.75 at Steam. (Prices as of )
Offers 9 · PC · from €0.64
Prices as of
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Serious Sam Double D XXL prices by store 7
| Store | Type | Price |
|---|---|---|
| Gamivo | Marketplace | €0.64 |
| GameSeal | Marketplace | €0.70 |
| Kinguin | Marketplace | €0.78 |
| K4G | Marketplace | €1.03 |
| Driffle | Marketplace | €1.07 |
| G2A | Marketplace | €1.89 |
| Steam | Official store | €9.75 |
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Lowest official since we started tracking (Jul 2026)
€0.97
Sept 2026
Lowest — keyshops
€0.39
Aug 2026
Monthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €0.97 | €0.51 |
| Sept 2026 | €0.97 | €0.44 |
| Aug 2026 | €9.75 | €0.39 |
| Jul 2026 | €0.97 | €0.33 |
| Jun 2026 | €0.97 | €0.52 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Gamivo, GameSeal, Kinguin, K4G, Driffle, G2A, Steam
System requirements
| Minimum | |
|---|---|
| OS | XP, Vista, 7 |
| Processor | 2.0 GHz or faster (Dual-core recommended) |
| Memory | 1GB |
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About this game — FAQ
Does Serious Sam Double D XXL have co-op?
Yes, Serious Sam Double D XXL supports local (split-screen) co-op.
Does Serious Sam Double D XXL have multiplayer?
Yes, Serious Sam Double D XXL has multiplayer.
Can Serious Sam Double D XXL be played single-player?
Yes, besides multiplayer modes, Serious Sam Double D XXL can also be played solo (single-player).
What languages does Serious Sam Double D XXL support?
Serious Sam Double D XXL is available in: English, French, German, Italian, Spanish - Spain.
Can Serious Sam Double D XXL be played co-op via Remote Play Together?
Yes — Steam Remote Play Together lets you invite friends to play local modes online without them owning the game.
FAQ
Where is the cheapest place to buy a Serious Sam Double D XXL key?
The cheapest Serious Sam Double D XXL key is currently sold by Gamivo for €0.64. That is the best of 9 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €0.33.
How much does Serious Sam Double D XXL cost?
Serious Sam Double D XXL currently costs from €0.64 — the cheapest offer across the stores we track. For comparison, the game costs €9.75 on Steam, so buying a key saves you about 93%.
Is Gamivo an official store or a keyshop?
Gamivo is a keyshop (marketplace) where independent sellers list keys, so prices are often lower than in official stores. Every offer on ulov.gg is clearly labeled with its store type.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.