Rainbow Six Vegas is now available to download for free via the Xbox Marketplace as part of Microsoft's Games with Gold promotion. It weighs in at 6.6GB
Ubisoft's squad-based shooter is the second of September's two free games for Xbox Live Gold members, and replaces Magic 2013 in the rotation.
Rainbow Six Vegas launched in 2006 and won critical and commercial success. Eurogamer's Kristan Reed awarded it 8/10, saying: "Rainbow Six Vegas is unquestionably an excellent - and very welcome - return to form for the series."
Microsoft's Games with Gold promotion provides two free game downloads a month from July to December 2013.