So Ubisoft have been celebrating being around for 30 years by giving away a free game every month, I only learnt about it recently with Blood Dragon & this months Assassins Creed 3, but for this weekend their giving another chance to get the 7 games they've had for free -
https://club.ubisoft.com/en-GB/ubi30
You've gotta use Uplay (steam type thing) but if you've played any of their games you've probably got that already.
Anyhow, it's till the 18th if you want them.