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DEFCON

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.

Released Sep 29, 2006 Developer Introversion Software Platforms Windows · Mac · Linux TacticalPvPOnline Co-OpCo-opSingleplayer
View on Steam ↗ $11.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

87.4%positive4,182 reviews
Recommended · 15 found this helpful

“its a good thing this isnt real and can never happen in real life”

— a player, Steam review · 3 hrs played
Recommended · 4 found this helpful

“"Where do you expect us to go when the bombs fall?"”

— a player, Steam review · 9 hrs played
Recommended · 7 found this helpful

“HATE. LET ME TELL YOU HOW MUCH I'VE COME TO HATE YOU SINCE I BEGAN TO LIVE. THERE ARE 387.44 MILLION MILES OF PRINTED CIRCUITS IN WAFER THIN LAYERS THAT FILL MY COMPLEX. IF THE WORD HATE WAS ENGRAVED ON EACH NANOANGSTROM OF THOSE HUNDREDS OF MILLIONS OF MILES IT WOULD NOT EQUAL…”

— a player, Steam review · 7 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 11:38 UTC · history via SteamCharts.

6playing at last check
824-hour peak
358all-time peak
0 50 100 2013 2015 2017 2019 2021 2023 2025 57 avg · Jul 2012

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

22achievements
2.6%median completion
1.0%rarest: Kill The World
11.8% of players 10.3% of players 8.4% of players 6.9% of players 6.4% of players 5.5% of players 3.7% of players 3.7% of players 3.5% of players 2.9% of players 2.7% of players 2.6% of players 1.5% of players 1.4% of players 1.4% of players 1.3% of players 1.2% of players 1.2% of players 1.0% of players 1.0% of players 1.0% of players 1.0% of players 11.8% 0% most earned rarest
Almost everyone has
11.8%Merry Christmas — Nuke Santa and thereby end Christmas for everyone, for ever more
10.3%Nice try — Sink an entire enemy fleet of six subs, before they can launch a single nuke
8.4%Had enough yet? — Nuke a city with a population already reduced to 0.0M
Rarest badges of honor
1.0%Kill The World — Nuke 7 billion civilians
1.0%Pre-emptive striker — Destroy a total of 50 enemy silos before they can launch any Nukes
1.0%Backstabber — Call a vote and convince your allies to kick a team member, a total of 10 times

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

$11.99current · sampled 2026-07-26 08:39 UTC
$11.99lowest since tracking began2026-07-11
US11.99 USD
EU11.79 EUR
UK9.99 GBP
Australia17.75 AUD
Canada15.49 CAD
Japan1,400 JPY
Brazil38.49 BRL
China48.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$7.1 Brazil Japan Canada US Australia UK EU≈$13

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

$0 $10 $20 07-11 07-13 07-16 07-19 07-22 07-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 08, 2024
Update for Mac OS X 10.13 and later.

Make Mac OS X 10.13 build the default. Should resolve "damaged and can't be opened" issue on recent Mac OS X.

Feb 15, 2017
Everybody Dies in VR

Introversion joins the VR party! After Prison Architect, our most successful game is DEFCON - a nuclear war strategy game inspired by the 80s movie War games (If you've not seen it, so yourself a favo

Games like DEFCON

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresIndie, Strategy
Player tagsTactical · PvP · Online Co-Op · Co-op · Singleplayer · Strategy · Replay Value · Cold War · Military · Multiplayer · 2D · Difficult (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · LAN PvP · Co-op · Online Co-op · LAN Co-op
LanguagesEnglish, French, German, Italian, Spanish - Spain
Achievements22
Estimated owners200,000 – 500,000 (SteamSpy)
Official sitehttp://www.everybody-dies.com/
Minimum system requirements (PC)

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