Valve has updated its Steam hardware and software survey for the month of January. Of particular interest is the fact that more than a third of gamers on the platform are now running a Windows 10-based system.

The breakdown reveals that 32.77 percent of Steam users are running the 64-bit version of Windows 10 with the remaining 1.28 percent utilizing a 32-bit copy of Microsoft's latest. Collectively, that's a 1.59 percent increase compared to the previous month.

Unsurprisingly, the increase is largely coming from Windows 8 / 8.1 defectors as usage of those operating systems dropped 1.2 percent month-over-month.

Despite its impressive growth, Windows 10 still lags behind Windows 7 by a sizable margin. According to the report, 34.31 percent of gamers currently use Windows 7 64-bit while another 7.77 percent have the 32-bit version installed. Collectively, usage of Windows 7 dropped just 0.5 percent versus the previous month.

Steam, which now has more than 125 million active users worldwide, is by far the most popular platform for PC gaming.

As PCWorld correctly highlights, Windows 10 adoption will likely see a gradual increase over the coming months. What'll be really interesting, however, is to see how Windows 7 adoption is impacted once gaming studios get serious about making DirectX 12 games. As you may know, DirectX 12 is only compatible with Windows 10.