Buy Serious Sam 3 Steam Key

PC
Serious Sam 3 cover
Gallery
Earn up to 1,600 tickets when you buy Use them in giveaways and auctions+ level bonus

A Serious Sam 3 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 €2.49 (no fees) at Instant Gaming · 4 verified stores, 5 offers in stock · Updated 30min ago.

Top Deals

Verified stores

Final prices with fees

See 5 keys from €2.49
Historical prices
Medium price
Current minimum price
Serious Sam 3 prices: 12-month price history →

Now available: Serious Sam 4, the latest in the Serious Sam series

You're viewing an earlier release. The most recent entry in this series for PC Digital is Serious Sam 4.

See Serious Sam 4 prices for PC Digital →
Resellers
No payment fees With payment fees

Final prices with fees

Instant Gaming 4.7 (843.1k)
No code available
€2.49
Store Instant Gaming
Global Icon
Region Global
Steam Key
Recommended by GoCDKeysiStore recommended by GOCDKEYS for this gameCheapest deal Best rated Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
Instant Gaming 4.7 (843.1k)
No code available
€2.49
Store Instant Gaming
Global Icon
Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.7/5Cheapest deal Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€2.42 €2.18 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.6/5Cheapest deal Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.52
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€12.83 €11.55 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Best ratediThe store with the best user rating among the offers for this game · 4.6/5Cheapest deal Product type Steam Key
Deluxe
Edition Deluxe
Description Icon
Fees +€1.27
Instant Gaming 4.7 (843.1k)
No code available
€2.49
Store Instant Gaming
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -
Gamivo 3.9 (50.4k)
Subscription from 2.01€/month
-9%
Coupon
GCDKGamivo -23% copy Copied!
€2.36 €1.82 How to get this priceHow to get
Store Gamivo
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.81
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€2.42 €2.18 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.52
G2A 4.0 (352.8k)
No code available
€3.71 How to get this priceHow to get
Store G2A
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees +€0.29
Kinguin 4.6 (124.5k)
Subscription from 2.99€/month
-15%
Coupon
OCTGOC10 -10% copy Copied!
€12.83 €11.55 How to get this priceHow to get
Store Kinguin
Global Icon
Region Global
Steam Key
Product type Steam Key
Deluxe
Edition Deluxe
Description Icon
Fees +€1.27

How much does Serious Sam 3 for PC cost right now?

Serious Sam 3 for PC starts at €2.49 (no fees) at Instant Gaming, a Steam key.

Supply is thin — 5 offers from 4 stores — and thin supply keeps prices steady rather than falling.

That puts it 3% under its average of €2.58 since 2017, so today is a better entry point than most days of its life.

Is it worth buying the Steam Key for Serious Sam 3 now or waiting?

That €2.49 (no fees) key is at one of its best prices.

  • Those €2.49 (no fees) are 46% below what it usually costs, measured on the store price.
  • Only 4 stores sell the Steam Key, and with that little competition the price barely moves.
  • Not counting today, only 84 days out of the 2,575 days on record were this cheap or cheaper; the lowest it has ever cost is €1.93.
At this price it is worth buying the Steam Key now: what you stand to gain by waiting is a few euros, and it is not guaranteed.

Worked out from 3,363 daily records of the Steam Key for Serious Sam 3 across 8 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.

Can you activate Serious Sam 3 in US?

All 5 offers are Global, so the code redeems on any account no matter where it was created.

Why is there such an expensive Serious Sam 3 offer?

One listing is worth ignoring: the Steam key that Kinguin has at €11.55 (€12.82 with fees) is more than 5 times the cheapest offer and is not what this game costs. The number to work from is €2.49 (no fees) at Instant Gaming.

Serious Sam 3: BFE is a glorious throwback to the golden age of first-person shooters where men were men, cover was for amateurs and pulling the trigger made things go boom. Serving as a prequel to the original indie sensation, Serious Sam: The First Encounter, Serious Sam 3 takes place during the Earth’s final struggle against Mental’s invading legions of beasts and mercenaries. Set against the collapsing temples of an ancient civilization and the crumbling cities of 22nd century Egypt, Serious Sam 3 is an exhilarating fusion of classic twitch shooters and modern gameplay features.

Most common FAQs when buying Serious Sam 3 for PC in digital format:

It is a key that will allow you to download the game Serious Sam 3 on your PC from official download platforms.
As of 23/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Serious Sam 3 on PC is €2.49 (no fees).
The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Serious Sam 3 to your game library. The account format requires more complicated steps and is more prone to errors during activation.
The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Serious Sam 3 , and they will provide a new key. You can also contact us, and we’ll help you out.
Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

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.
At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

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.

What do our users think of Serious Sam 3 for PC Digital?

5/5 (14 Comments)
demon00romania

very good game Wow,this is so good,thank you guys!I wish i win the game on the fortune wheel,because my parents don't give me cash,this is great,wish me luck,because i plan to spend some good tickets on this!

davidrhodin

Intense top notch old school shooter. This game offers no cover but what it does offer you is a variety of weapons to mow down a screen full of aliens.

elindor96

I got it really cheap and I have such a great gameplay :D if you want to kill stuff in a slaughter, this is definitely the game for you :D :D

malidjole017

I was so so so close getting that game many times,but it doesn't change my mind,i am still trying to get it,luck has smiled on me,every time i get more and more tickets :D

malidjole017

Wow,this is so good,thank you guys!I wish i win the game on the fortune wheel,because my parents don't give me cash,this is great,wish me luck,because i plan to spend some good tickets on this!

mobin70

i played ser sam 2 a lot

mobin70

Never understanded the story

To comment, at Gocdkeys.

Before commenting, verify your account from the link sent to your email.

Rate and comment: your experience matters!

You are registered as:
Rate your stars
Thank you for your comment, it will be reviewed by our team shortly.
Share your thoughts about this game

Minimum 50 characters. Tell us something useful about the game: filler comments aren’t approved and don’t earn tickets.

50 more characters to go 0/50

Serious Sam 3

Is it worth it?

Excellent overall reception
Write a review →

About the game

Release date
3 Jul 2017
Genre
FPS / FPP

Coming up next

Farming Simulator 25: Beans & Alpacas Expansion — Oct 27

Farming Simulator 25: Beans & Alpacas Expansion

Oct 27
Phantom Blade 0 — Oct 29

Phantom Blade 0

Oct 29
Dragon Quest Monsters: The Withered World — Dec 3

Dragon Quest Monsters: The Withered World

Dec 3
Stranger Than Heaven — Jan 15

Stranger Than Heaven

Jan 15
Metro 2039 — Feb 4

Metro 2039

Feb 4
Romancing SaGa 3: Destinies United — Feb 16

Romancing SaGa 3: Destinies United

Feb 16
Persona 4 Revival — Feb 18

Persona 4 Revival

Feb 18
Fable (2027) — Feb 23

Fable (2027)

Feb 23
Gundam Rogue Orbit — Mar 5

Gundam Rogue Orbit

Mar 5
Wo Long 2: Wings of Ember — Mar 31

Wo Long 2: Wings of Ember

Mar 31
Final Fantasy VII Remake Series Trilogy Edition — Apr 8

Final Fantasy VII Remake Series Trilogy Edition

Apr 8

How to obtain more tickets

Join us on Discord! +15 Join us on Telegram! +15 Follow us on X! +10 Follow us on Facebook! +10 Join us on Reddit! +10 Link our extension! +40 Bring your Steam wishlist! +40 Complete your gaming profile! +15 Write a game review +10

To win the tickets, your email in Gocdkeys must match your email in Discord.

For the Telegram tickets, open our bot @gocdkeys_bot, tap "Start" and send it the email of your Gocdkeys account in a private message (if you signed up with Steam, add a real email to your profile first).

Your review must be original. We check it by hand within 24 hours, and the tickets are only added if we approve it. Only one review per game counts, up to 2 a day.

Win free games with your tickets →