Ubisoft's 2006 shooter Rainbow Six Vegas is now free (normally $20) to download on Xbox Live as part of Microsoft's Games with Gold promotion.
The game is free for all Xbox Live Gold subscribers through the end of the month. It replaces Magic 2013, which was free on Xbox Live from September 1-15.
Gamers in South Africa will receive Shadowrun instead of Rainbow Six Vegas, Microsoft said.
The free games are part of Microsoft's new Games With Gold program that gives Xbox Live Gold subscribers two free titles--to keep--each month until December 31.
Microsoft has not announced October's free games yet.