PCGame

DEFCON

Cold War strategy matches of nuclear strikes and fragile alliances

Introversion Software · Released Sep 29, 2006

IndieStrategy

Reviews
Very Positive
86% of 3,856
Recent reviews
Very Positive
91% of 48 in 30 days
Players
10
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
1 month ago
Sep 18, 2026
Minimum PC
–
not published

Metacritic: 84/100 (critic reviews)

What is DEFCON?

A top-down, real-time strategy game set during a Cold War-era nuclear exchange. In solo or multiplayer matches, you position submarines, silos, and air defenses, then launch strikes against enemy populations while trying to protect your own. Multiplayer alliances can break down as attacks leave players open to retaliation.

For you if...

  • +you enjoy tactical multiplayer with shifting alliances
  • +you like making strategic choices under real-time pressure

Not for you if...

  • −you prefer turn-based planning to real-time decisions
  • −you avoid bleak depictions of mass civilian casualties

What players say

86% of 3,856 reviews are positive · 91% of 48 in the last 30 days

Players praise the spare presentation, tense sound design, and strategic choices built on simple mechanics. Some find matches repetitive or solo opponents frustrating. Others report difficulty finding multiplayer games, interface scaling problems, and crashes.

Players over time

▼ -52% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 66 players on Sep 30, 2026.

Show the data
DayPlayers
Nov 7, 202610
Nov 6, 202614
Nov 5, 202612
Nov 4, 20264
Nov 3, 202611
Nov 2, 202615
Nov 1, 20266
Oct 31, 202614
Oct 30, 202611
Oct 29, 20269
Oct 28, 20266
Oct 27, 20264
Oct 27, 20269
Oct 26, 202612
Oct 25, 20267
Oct 24, 20263
Oct 23, 202610
Oct 22, 20260
Oct 21, 20267
Oct 20, 20269
Oct 19, 202613
Oct 18, 202613
Oct 17, 202619
Oct 16, 20268
Oct 15, 202619
Oct 14, 202612
Oct 13, 202615
Oct 12, 202613
Oct 11, 202613
Oct 10, 202615
Oct 9, 202618
Oct 8, 202618
Oct 7, 202619
Oct 6, 202639
Oct 5, 202627
Oct 4, 202638
Oct 3, 202631
Oct 2, 202634
Oct 1, 202658
Sep 30, 202666
Sep 29, 20266
Sep 28, 20267
Sep 27, 202610
Sep 26, 202611
Sep 25, 202615
Sep 24, 20268
Sep 23, 20265
Sep 23, 202618
Sep 22, 202613
Sep 21, 20266

Screenshots and trailer

DEFCON screenshot 1

DEFCON system requirements

As published by the developer.

Can my PC run DEFCON?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

Windows XP, P3-600-Geforce 2, 128 Mb RAM, 60 Mb Hard Disk, Internet connection for multiplayer games

Does DEFCON have co-op or multiplayer?

Yes: co-op online and LAN; PvP online and LAN. It also has a single-player mode. Crossplay with other platforms is declared.

Does DEFCON run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some text entry requires manually opening the on-screen keyboard
  • All functionality is accessible with the default controller configuration
  • In-game text is legible on Steam Deck
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS, Linux
Achievements
22
Steam features
Family Sharing
Languages
Text only: English, French, German, Italian, Spanish - Spain.

Does DEFCON use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam

Tags

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