Introversion Software presents DEFCON, a stunning multiplayer simulation of global thermonuclear war.

Take on the role of a General hidden deep within an Underground bunker.
Compete against the computer or online against your friends for total world domination.

Start by launching battleships, subs and bombers in order to decimate your opponents defences. Scramble together your alliances but remember only one can stand victorious.

Prepare your pre-emptive strike before one of your supposed allies gets the same idea. Choose the perfect moment to obliterate your opponents with an apocalyptic thermonuclear barrage, but get it wrong, and their devastating counter attack will bring you to your knees!

Its Global Thermonuclear War, and nobody wins. But maybe - just maybe - you can lose the least.

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0 comments by the*Joker on Dec 30th, 2011

Welcome to Introversion Tournaments

  • Introversion Tournaments is a community group for players and supporters of Introversion Softwares' video game hits Multiwinia, DEFCON, and Darwinia. Here, we all show our support for these games and will occassionally set up play dates and tournaments for every Multiwinia and DEFCON player to participate in, and to have fun.

The aim of Introversion Tournaments is to rally all players of DEFCON and Multiwinia into one central hub, and set up playdates and tournaments for players to participate in and have some good fun by waging war with Multiwinians or by nuking eachother with weapons of mass destruction. It also represents the players as a whole for our friends over at Introversion Software, who created these marvels of imagination. If you want to take part in these tournaments, and have some good fun duking it out Multiwinian/Nuclear Armageddon style, please join Introversion Tournaments right now!

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Defcon bmp

Defcon bmp

Sep 10, 2014 Full Version 0 comments

This is small graphic enhacement for Defcon and its mods Put the bmp files in Defcon/data/graphics and enjoy in game (no triangles and squares)

Windows demo + unlockable full version (v1.6)

Windows demo + unlockable full version (v1.6)

Nov 24, 2011 Demo 2 comments

You may play the single player Tutorial, and you may play a single player game against one AI opponent. (The full game permits six player games with any...

Linux demo + unlockable full version

Linux demo + unlockable full version

Nov 24, 2011 Demo 0 comments

You may play the single player Tutorial, and you may play a single player game against one AI opponent. (The full game permits six player games with any...

Post comment Comments  (0 - 10 of 28)
Hax64 Mar 29 2014, 2:28am says:

Hi guys I created a mods folder in the game Defcon folder, and unzipped some mods into it, but I don't see a "mods" option when I start the game?

+1 vote     reply to comment
flyerton99 Feb 20 2013, 5:12am says:

I love this, the beginning where we wait for Defcon 1 to quote totalbiscut " Fire ze missiles" because when it hits Defcon 1. ALL HELL BREAKS LOOSE. Naval ships firing missiles, bombers nuking the cities, Silos firing the death machine of the century. IT IS SOO AWESOME.

+1 vote     reply to comment
Milanium Feb 2 2013, 2:38pm says:

I downloaded the Demo via Desurium on Linux and entered my CD-key I bought at Introversion back in the days and it works. Awesome! Thanks.

+1 vote     reply to comment
Mr_fish_taco Dec 15 2012, 12:24pm says:

i would like to buy this but i would need to know the PC requierments. my computer sucks.

+1 vote     reply to comment
Guest Sep 1 2013, 3:51pm replied:

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Mr_fish_taco Dec 15 2012, 12:19pm says:

play this game, then all the fallouts.

+1 vote     reply to comment
Monkey_Zombie Jul 10 2012, 5:59am says:

I got this game for 5 bucks at a Goodwill. It was difficult to play at first, but after a few games I understood the mechanics. Not much of a visual game but still fun to wipe out the enemy nations.

+1 vote     reply to comment
roster312 Apr 8 2012, 4:18pm says:

is it me or do i find this a little bit the same as Global Domination on the PS1 - the very old game wich makes you dominate the same way by sending Ships,Rockets,Planes & etc. at other countries

+1 vote     reply to comment
chaosfera Feb 6 2012, 9:41pm says:

It's Global Thermonuclear War, and nobody wins. But maybe - just maybe - you can lose the least.

+4 votes     reply to comment
assasins943 Feb 4 2012, 11:56pm says:

great game. just wish it was cheeper so i could buy it. for a game this small i would rather not spend $15. but its amazing, when i was a kid i saw War Games and this is pretty much the same thing it even says "how about a nice game of chess" when you start a new game!

+1 vote     reply to comment
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Developer & Publisher
Introversion Software
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Release Date
Released Sep 27, 2006
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100 votes submitted.

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Highest Rated (3 agree) 10/10

Well-made game, brings back memories...
Nice graphics, easy enough to learn and the AI is a worthy challenge.
"Global Thermonuclear War" reimagined and revamped.

A great game for fans of "WarGames".

Dec 1 2011, 6:06pm by Mona_Moonlight

Real Time Strategy
Single & Multiplayer

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