Initially Valve’s Steam Hardware & Software Survey for December 2025 showed Linux at 3.19%, but they appear to have amended it with a nice boost for Linux. There were a few issues I spotted like languages and such not adding up, but now they do so it appears there’s a few corrections that were made to it this month.
Now the latest figures from Valve show for December 2025:
Windows: 94.23%
Linux: 3.58%
macOS: 2.18%



Survey error. They oversampled the Chinese market. In fact, you can also see a huge increase in Chinese language whenever there’s a huge drop un Linux marketshare. It hashappened 2 times that I can remember.