Ubisoft has announced another free-to-play weekend for Rainbow Six: Siege (via VG247) that has begun far in advance of the weekend. As of today at 1pm Eastern, Xbox One and PC owners can play for free until 1pm Eastern on Monday, August 1.
You'll need to download Uplay and create an account if you want to take advantage of the promotion on PC. If you're playing on Xbox One, head over to the Rainbow Six: Siege page and click the download link.
Should you enjoy your time laying Siege to Siege, you can purchase the standard and gold editions of the game at 50 percent off from both Xbox Live and Uplay.
Ubisoft has done a good job expanding on Rainbow Six: Siege since its release last December. Several expansion packs have been released, each adding new characters, maps, and items.