Can be activated in:
Åland Islands, Albania, Algeria, Andorra, Angola, Anguilla, Antarctica, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, plurinational state of, Bonaire, Sint Eustatius and Saba, Bosnia and Herzegovina, Bouvet Island, Brazil, British Indian Ocean Territory, Brunei Darussalam, Bulgaria, Burkina Faso, Burma, Burundi, Cambodia, Cameroon, Canada, Cape Verde, Cayman Islands, Central African Republic, Chad, Chile, China, Christmas Island, Cocos (Keeling) Islands, Colombia, Comoros, Congo, Congo, Democratic Republic of the, Cook Islands, Costa Rica, Cote d'Ivoire, Croatia, Cuba, Curaçao, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Falkland Islands (Malvinas), Faroe Islands, Fiji, Finland, France, French Guiana, French Polynesia, French Southern Territories, Gabon, Gambia, Georgia, Germany, Gibraltar, Greece, Greenland, Grenada, Guadeloupe, Guatemala, Guernsey, Guinea, Guinea-Bissau, Guyana, Haiti, Heard Island and McDonald Islands, Holy See (Vatican City State), Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Isle of Man, Israel, Italy, Jamaica, Japan, Jersey, Jordan, Kazakhstan, Kenya, Kiribati, Korea, Republic of, Kuwait, Kyrgyzstan, Lao People's Democratic Republic, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Macao, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Martinique, Mauritania, Mauritius, Mayotte, Mexico, Micronesia, Federated States of, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, New Caledonia, New Zealand, Nicaragua, Niger, Niue, Norfolk Island, Northern Mariana Islands, Norway, Oman, Palau, Palestinian Territory, Occupied, Papua New Guinea, Paraguay, Peru, Philippines, Pitcairn, Poland, Portugal, Qatar, Republic of North Macedonia, Reunion, Romania, Russian Federation, Rwanda, Saint Barthélemy, Saint Helena, Ascension And Tristan Da Cunha, Saint Kitts and Nevis, Saint Lucia, Saint Martin (French Part), Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Sao Tome and Principe, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Sint Maarten, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Georgia and the South Sandwich Islands, South Sudan, Spain, Sudan, Suriname, Svalbard and Jan Mayen, Swaziland, Sweden, Switzerland, Taiwan, Province of China, Tajikistan, Tanzania, United Republic Of, Thailand, Timor-Leste, Togo, Tokelau, Tonga, Turkey, Turkmenistan, Turks and Caicos Islands, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States, United States Minor Outlying Islands, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Virgin Islands, British, Wallis and Futuna, Western Sahara, Zambia, Zimbabwe
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.
You play a General hidden deep within an underground bunker. Your mission is to successfully exterminate your enemy's civilian population whilst saving your own. Points are awarded or lost depending on both the efficacy and thoroughness of your nuclear vendetta and the number of your own civilian deaths. In order to win you must wipe out the enemy population and simultaneously disable the enemy's ability to retaliate against you. This is an extremely difficult task since launching an attack on the enemy exposes the positions of your own Ground Silos, Subs and Bombers the moment they launch nuclear weapons, making you extremely vulnerable and exposed to a crushing counter-attack.
Desperate attempts must be made to form fast, tactical alliances, alliances that may at any moment break-down to become the treacherous and most deadly of betrayals. Everyone looks to each other in a state of nervous suspense and paranoid accusation. In all-out nuclear Armageddon, everybody dies, everybody loses, you just have to make sure you lose the least!
windows Minimum
OS: Windows XP
Processor: P3-600
Graphics: Geforce 2, 128 Mb RAM
Storage: 60 Mb Hard Disk
Additional notes: Internet connection for multiplayer games
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2025-06-19
Kick Off the New Season with YUPLAY’s Explosive DOUBLE DISCOUNT SALE!
We are starting the new summer season with a blast! If you are ready to boost your discount and get even more value from your favorite game titles, then this limited-time offer is just what you have been waiting for. From 19.06.2025 14:00 CET to 23.06.2025 15:00 CET, we are launching a special campaign that delivers exclusive price cuts across our YUPLAY catalog, PLUS an extra discount on the cheapest one of your chosen games at checkout…
For the next few days, we are going to offer you with an opportunity to win awesome prizes by using your knowledge of gaming and a bit of sharp detective skills. The rules are simple: 3 posts on our YUPLAY X Profile; 3 very pixelated popular game covers to guess (much harder than the last time); 3 great prices – 3x 50€ in YU Coins. The 3 winners will be randomly picked by our team after the end of each game. Are you ready for our PixelPlay Giveaway?
