accesgranted1 :
Hi guys i wonder if i can login in my friends Steam accounte then download a game that was free for a week-end but i missed it and i couldn't get it so if i can login in his profile steam then download the game then install it then return to my profile and add it like a non-steam game and play online with him?
thanks in advance
NO.
1) Once a 'free weekend' has ended (actually ends on Sunday, starts on Friday) it is over, you do NOT have access to the game and STEAM checks for this before it launches.
2) What your suggesting is PIRACY, as the game is NOT your purchased copy, so once you log into YOUR account for YOU to play, then NO you can't play it UNLESS YOU BUY IT. ONE GAME-ONE ACCOUNT-ONE USER, period.