Defcon: Everybody Dies only 0,49

That's stupid. Actually, the Steam version never worked for me online, so if anything, you should get this for anything but Steam.

yea but within the game, there's an authentication section. you can insert your GMG key into the demo. This means that although steam is playing the demo and it says demo on the friends list - the game is still full version and playing with full version. so the only real diffrence is that the key isnt tied to your steam but still runs from steam

+1 same here