According to steam borderlands 2 will be free on steam this weekend, and the game of the year edition of the game is supposed to be 75% off. I Checked the official site and found this
"If for some reason you're interested in Borderlands 2 but have yet to play it, then here's good news: the game is free on Steam this weekend. Even better, if you enjoy the game there's a hefty 75 per cent discount on both Borderlands 2 and its Game of the Year edition during that period. Naturally, you'd be better off going for the latter as the DLC packs include a wealth of extra content.
The free weekend is timed perfectly to get indecisive punters aboard the Borderlands train ahead of the October release of Borderlands: The Pre-Sequel. Indeed, the game is now available for pre-purchase on Steam. You can play as Claptrap, which is great, because it means you can send the annoying robot to his death.
We had a hands-on session with the pre-sequel recently, describing it as "familiar, but fun". It releases October 14."
http://www.pcgamer.com/2014/08/21/borderlands-2-is-free-on-steam-this-weekend/?ns_campaign=article-feed&ns_mchannel=ref&ns_source=steam&ns_linkname=0&ns_fee=0
If you Want the game or any of the DLC's that you don't' already have, This would be a good time to get them.
