Latest Articles for UNO
Castle Crashers, Trials HD, Hasbro Family Game Night and Shadow Complex also did well.
Friendship is Free promotion to run for 30 days.
Includes 10 retail games, five Arcade games, two wireless controllers, memory card and HDMI lead.
Also updates for Uno, Bomberman Live and Pinball FX.
Capcom's classic brawler is the most purchased game on the service between July 06 and June 07.
Microsoft's Robbie Bach says Games for Windows will revitalise gaming for the Windows platform.