This weekend is your last chance to grab seven Ubisoft games for free on PC. The games are Assassin's Creed III, Rayman Origins, Far Cry 3; Blood Dragon, The Crew, Splinter Cell, Beyond: Good & Evil, and Prince of Persia: The Sands of Time.

The set is going free as part of the publisher's 30th birthday celebrations, but December 18 is the last day they'll be available. To claim copies of each, go to the Ubi30 website.

In other Ubisoft news, the publisher's latest big release, Watch Dogs 2, is not performing as well as expected, after UK week one sales were down 80 percent on the original Watch Dogs. That's despite an excellent critical reception--including an 8 from GameSpot.

In response to Watch Dogs 2's sales, Ubisoft said it remains "confident that millions of players are going to love [the game]."