DEFCON is a stunning, online, multiplayer strategy simulation based around the theme of global thermonuclear war. The game, inspired by the 1983 cult-classic WarGames, superbly evokes the tension, paranoia and suspicion surrounding the Cold War era.

The player assumes the role of a General hidden deep within an underground bunker, the mission being to successfully exterminate the enemy's civilian population while at the same time disabling the enemy's ability to retaliate. Desperate attempts must be made to form fast, tactical alliances - alliances that may at any moment break-down to become treacherous and very deadly betrayals.

Compete against the computer or even better, compete against fellow Mac or Windows players online for total world domination.

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

Do you have what it takes to outsmart your opponent? Can you handle the pressure of global thermonuclear war? Remember - nobody wins. But maybe - just maybe - you can lose the least.

• Fixed a potential exploit where fleets could be made to sail through land masses if sent to certain hotspots
• Made improvements which should help with problems creating games on a local network