Hi all and sorry 4 my english.
So, I bought Crysis 2 maximum edition, "weekend deal, crysis fanchise -75 %"off, in steam and I have a problem witch multiplayer.
When I'm putting the CD-KEY which i get on steam for crysis 2 there's appearing the window (in-game) "error, cd key is invalid" .
where should i write, what should I do to play multiplayer ?
Please help me