Today, the 1700 mark has been crossed. There are currently 1703 games on Steam Store being able to natively run on Linux. It took just over three years to reach this mark, since the first release of Steam for Linux. It might seem like a lot of games considering the percentage of actual Linux computers running Steam games.
According to the Steam hardware and software survey that was taken in November 2015, only 0,98% of total operating systems accessing Steam games are Linux. 95.26% of them are Windows computers and there are ‘only’ about 7000 Windows-based games available on Steam.
Sure, there is still a long way to go until Linux and Windows statistics will even come close; currently some of the most popular games are not available for Linux and graphic drivers for Linux *still* have some issues.