You will receive an Authentication Key when you purchase
the full game.
An authentication key looks something like this:
AAAAAA-BBBBBB-CCCCCC-DDDDDD-EEE
DEFCON Shows "Key Unknown" when I try to
authenticate
Your key is fine, but you have a
problem with your networking. In this state you can
play a single player game, or LAN game with players
with different keys. You must be connected to the
internet for DEFCON to be able to authenticate your
key and allow you to play against other on-line gamers.
Troubleshooting for network problems can be found
here.
I have lost my Key
If you've bought the game from us
online then you can get your Authentication Key by
logging in to our Online
Store.
I'm having trouble with the Steam version
Steam uses a slightly different
key authentication system.
Please visit our Steam
Support page.
My key has been Banned
If you find your key has been banned
it means our system has detected multiple uses of
your Key from many different IPs, suggesting your
key is being used by many people. In order to fix
this problem we must issue you a new key. You must
contact
us in order to resolve this issue.
I have a Full-Game key but don't know what to do with
it
Click here
for instructions on upgrading the Defcon Client to
the full game.
