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Buy DEFCON PC

Where can you buy cheapest DEFCON PC Steam key? Check and compare prices from 8 stores to locate the best and the cheapest option for you among 8 offers featured on XD.deals. Now the lowest DEFCON PC price on keyshops can be obtained on A$3.99 (79% off) and on official stores can be obtained on 79 (A$5.32 off).

Steam:
Very Positive (3k)
Buy in Official Store:
-70%
A$5.32
Buy in Keyshops:
-79%
A$3.99
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
DEFCON
Windows
+3
4d ago
DRM:
Steam
Ends in 2 days
Steam
A$17.75 A$5.32
Ends in 2 days
-70%

Keyshops (7)

DRM:
Kinguin
DEFCON Steam CD Key
Windows
+3
1d ago
DRM:
Steam
Kinguin
A$19.52 A$3.99
-79%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Eneba
DEFCON Steam Key GLOBAL
Windows
+3
2h ago
DRM:
Steam
Eneba
A$19.60 A$4.37
-77%
-10% with XDD10copy
-10% with XDD10copy
GameBoost
Defcon Steam Key GLOBAL
Windows
+3
15h ago
DRM:
Steam
GameBoost
A$17.27 A$4.67
-72%
Kinguin
DEFCON GOG CD Key
Windows
+3
14h ago
Kinguin
A$19.52 A$5.62
-71%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Eneba
DEFCON Gog.com Key GLOBAL
Windows
+3
3d ago
DRM:
GOG
Eneba
A$19.27 A$6.05
-68%
-10% with XDD10copy
-10% with XDD10copy
Yuplay
DEFCON
Windows
+3
15h ago
Yuplay
A$17.27 A$6.97
-59%
Kinguin
DEFCON Steam Gift
Windows
+3
2h ago
DRM:
Steam
Kinguin
A$19.60 A$15.26
-22%
-8% with XD8DEALScopy
-8% with XD8DEALScopy

About DEFCON

DEFCON - about the game
Hidden in an underground bunker during the Cold War, DEFCON delivers a strategy game of global thermonuclear war. Players position submarines, silos, and air defenses to wipe out enemy populations while shielding their own. Fragile alliances form and shatter amid betrayals, as each strike invites devastating retaliation in real-time death toll tracking. The minimalist military interface and tense soundscape amplify psychological pressure in multiplayer brinkmanship. Paranoia drives decisions to balance aggression and survival, ensuring total Armageddon hits others hardest. Strategy fans who relish high-stakes gambles and human cost simulation will find its depth compelling.

DEFCON, inspired by the 1983 cult classic Wargames, is a Cold War-era strategy game simulating global thermonuclear war. Hidden in an underground bunker, your goal is to annihilate enemy populations while protecting your own. Fragile alliances and betrayals shape the high-stakes gameplay, as every attack exposes you to retaliation. With its minimalist interface, DEFCON tracks death tolls in real-time, blending psychological tension with strategic depth. In nuclear Armageddon, everybody loses. You just have to lose the least.

Experience the chilling reality of global thermonuclear war in DEFCON. Position submarines, silos, and air defenses to engage in strategic nuclear exchanges. Every attack reveals your own vulnerabilities, making each decision a high-stakes gamble. The minimalist, military-style interface, and chilling soundscape heightens the tension.

DEFCON shines in multiplayer, where alliances are forged and broken in a heartbeat. Engage in brinkmanship, balancing aggression with self-preservation, to avoid triggering total nuclear war. The ultimate goal: ensure you lose the least, as paranoia and betrayal dominate every moment.

DEFCON doesn’t just simulate war — it emphasizes its devastating cost. Real-time death tolls track the human impact as cities are obliterated and the globe plunges into darkness.

DEFCON was the 3rd major game from acclaimed indie developer, Introversion Software, which then went onto to develop the BAFTA winning game, Prison Architect.

Introversion Software has been developing games since 2001, and stands behind acclaimed titles like Uplink, Darwinia, Multiwinia, Prison Architect, Scanner Sombre, and their latest release, The Last Starship. Introversion has garnered both critical and commercial success being recognised with multiple awards including the IGF grand prize for Darwinia and BAFTA for best persistent game (Prison Architect). They have sold more than 4M copies of their games worldwide.

Interface:
GermanEnglishSpanish - SpainFrenchItalian

Age rating

Unavailable
Steam:
Very Positive (3k)

Recommended:

Minimum:

  • OS: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, or later.
  • Processor: Intel Core Duo 1.66GHz+
  • Memory: 1GB of RAM
  • Graphics: 64MB of video memory

Recommended:

  • OS: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, or later.
  • Processor: Intel Core Duo 1.66GHz+
  • Memory: 1GB of RAM
  • Graphics: 64MB of video memory

Minimum:

  • Processor: 1.8 Ghz
  • Memory: 1Gb
  • Graphics: 64Mb of memory
  • Storage: 70Mb

Recommended:

  • Processor: 1.8 Ghz
  • Memory: 1Gb
  • Graphics: 64Mb of memory
  • Storage: 70Mb
Historical low
Price history from official stores
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Price history from keyshops
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FAQ

8 questions

Before you start looking for a cheap DEFCON CD Key, take a moment to check the essentials. Developed by Introversion Software. Published by Introversion Software. PC released date: 29 Sept 2006. Genres: Strategy, Indie. Categories: Multi-player, PvP, Online PvP, Family Sharing, Co-op, Single-player, Cross-Platform Multiplayer, Steam Achievements, LAN PvP, Online Co-op, LAN Co-op. DEFCON reviews: Steam reviews: 87% of the 3,331 user reviews for this game are positive.

Q Can I play DEFCON on Steam Deck?

Yes, with minor tweaks. DEFCON Steam Deck compatibility is Playable, so the game works after small adjustments (e.g. selecting a Proton version or using the touchscreen for tiny launcher text). In short: "You can play DEFCON on Steam Deck".

Yes. A DEFCON Steam version exists. Pick any offer tagged Steam Key on XD.deals, redeem it in the desktop client, and play DEFCON on Steam PC.

Yes. Once your Steam key is redeemed, you can launch DEFCON in Offline Mode via Steam. Your save files will sync the next time you go online.

Yes, you can buy a DEFCON Steam Key directly on the Steam Store. At XD.deals, we aggregate all available Steam DRM offers so you can compare cheap DEFCON steam deals in one place.

You'll find every live sale & discount for DEFCON right here on XD.deals. Our price tracker currently lists 1 official-store offers and 7 keyshop deals. Check the table above for the lowest price, compare against the game's historical low, and set a price alert so you never miss the next drop.

With XD.deals, PC gamers can instantly see where to buy a cheap DEFCON PC Steam key. Our real-time price-comparison engine and curated coupon database track every official store and trusted keyshop so you don't have to. Right now we detect this game in 8 live offers from stores and keyshops.

Yes. An official DEFCON Steam store page is live, so you can buy DEFCON on Steam or buy any DEFCON PC Steam Key on XD.deals and redeem it instantly.

No - XD.deals itself isn't a store. We're a price-comparison service that tracks the best offers for DEFCON across official stores and verified keyshops. Click "Shop Now" next to the deal you want, and you'll be redirected to the retailer's website to complete your purchase and receive the key there.

Best prices for DEFCON

1 Kinguin Kinguin Keyshop
-79% A$3.99
2 Eneba Eneba Keyshop
-77% A$4.37
3 GameBoost GameBoost Keyshop
-72% A$4.67
4 Steam Steam Official
-70% A$5.32
5 Yuplay Yuplay Keyshop
-59% A$6.97

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