Depending on how it is measured, the market share for gaming on GNU/Linux is less than 1%. Jason Evangelho writes at Forbes about what is holding back gaming on GNU/Linux. He outlines three problem areas. First, there is inconsistency across the distros in how hardware — especially the graphics card — is dealt with. Second, major titles continue to ban the accounts of those who join from GNU/Linux hosts. Lastly, he figures that the gamers need to pull behind a single distro and get support for just that one distro because vendors are using the existence of multiple distros as an excuse to support none of them.
(Score: 2) by eravnrekaree on Saturday April 06 2019, @12:14AM
If your making a game anyway what you really should be doing is doing it as a progressive web app which is an application can be installed on the users computer and runs as a desktop app but runs on the web browser architecture. This covers all plartforms with a modern web browser, Mac, Linux and Windows.
Also there are snaps that allow for a single installer package for any distro.