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DEFCON

Game overview

DEFCON

Inspired by the 1983 cult classic film, Wargames, DEFCON superbly evokes the tension, paranoia and suspicion of the Cold War era, playing on the fascinating aspects of psychological gameplay that occur during strategic nuclear warfare.

Strategy Singleplayer Simulation War Indie
Last tracked players
10
All-time peak
43
24-hour change
Unavailable
Steam reviews
87% positive
3,512 reviews · via SteamSpy

Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description

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.

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Update for Mac OS X 10.13 and later. The best strategy games on PC The best strategy games on PC
System requirements Windows · macOS · Linux

Windows

Minimum

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

macOS

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
  • Hard Drive:

Linux

Minimum

  • Processor: 1.8 Ghz
  • Memory: 1Gb
  • Graphics: 64Mb of memory
  • Hard Drive: 70Mb
Game details Languages, features & support
Publisher
Introversion Software
Brazilian rating
6
Steam Germany rating
12
Achievements
22
Metacritic
84
Features
Single-player, Multi-player, PvP, Online PvP, LAN PvP, Co-op, Online Co-op, LAN Co-op, Cross-Platform Multiplayer, Steam Achievements, Family Sharing
Languages
English, French, German, Italian, Spanish - Spain
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
playable
Valve compatibility test
The on-screen keyboard may need to be opened manually.
Input
Controller support: unknown
Structured language support (5)
LanguageInterfaceFull audioSubtitles
EnglishYesNoNo
FrenchYesNoNo
GermanYesNoNo
ItalianYesNoNo
Spanish - SpainYesNoNo
Steam store page fresh · checked 2026-11-01 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
Achievement progress Rarity & completion patterns

Achievement Difficulty

Global unlock percentages are not exact completion or retention metrics.

Steam source
Achievements measured
22
Hunter score
74.1 / 100
SteamIQHQ inference from rarity and count
Progression analysis
Achievement rarity is available, but milestone order is not defensible.

Rarest achievements

Backstabber 1%
Kill The World 1%
Pre-emptive striker 1%
Reserves 1%
Perfectly timed betrayal 1.2%

Difficulty distribution

Ultra rare (<1%)0
Very rare (1–5%)16
Rare (5–20%)6
Uncommon (20–50%)0
Common (50%+)0
Observed Nov 09, 2026 02:15 UTC · fresh
More analysis Activity patterns, updates & developer tools

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Game Insights

Buy Verdict

Watch — $8.99.

Decent deal at 70% off, but might drop further. Watch for better opportunities.

▬ ~13 days until next sale

Value Score

Great Value — 77th percentile.

Price-to-player ratio ranks in the 77th percentile. Priced as Market at $11.99.

▲ Market pricing tier

Genre Benchmarks

Player Count Top 46%
Value Ratio Top 23%

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Developer Analytics

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Frequently Asked Questions

Is DEFCON worth buying right now?
Watch — $8.99. Decent deal at 70% off, but might drop further. Watch for better opportunities.
When does DEFCON go on sale?
Decent deal at 70% off, but might drop further. Watch for better opportunities.
Is DEFCON free to play?
DEFCON costs $8.99 on Steam.
What genre is DEFCON?
DEFCON is a Indie, Strategy game.
Who developed DEFCON?
DEFCON was developed by Introversion Software and published by Introversion Software.
What platforms does DEFCON support?
Available on Steam for Windows, macOS, Linux.

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