Xbox Live
Xbox Live is an online gaming and multimedia service created and operated by Microsoft. The first version of the service was supported on the Xbox in November 2002. An enhanced version was further deployed on the Xbox 360 in November 2005, and a fully advanced version was released in 2013 on Xbox One.
Xbox Live is where you can buy games for your Xbox gaming console as well as Xbox games for PC. The service is divided into three tiers: a free tier where you can buy individual games; a subscription-based tier called Xbox Live Gold, which includes multiplayer gaming, membership in a gaming community, and game discounts; and Xbox Game Pass for PC, which includes all of the above as well as access to over 100 awesome Xbox games for Windows 10.
Detailed information:
Number of titles: 2,000+
Platforms: Windows, Xbox (360, One)
Website: xbox.com/en-US/live