is a senior editor and author of Notepad , who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft is starting to test its new aggregated gaming library in its Xbox PC app on Windows. Xbox Insiders will now be able to see their Steam and Battle.net games all within the Xbox app this week — making it a single launcher for most installed PC games. It’s part of Microsoft’s efforts to make the Xbox app on Windows the home of PC gaming and compete with Steam and SteamOS by combining Windows and Xbox. The Xbox PC aggregated gaming library.