If you ported your game to the Atari ST or the Amiga you'd get more press and probably more sales.
Developer kits like Unreal and Unity have helped a lot here, but those are far from flawless. Even those struggle with Linux because there's just way too many distributions and way too few standards.
Now, statistically, I realize we don't exist. But at absolute levels, we do.
In practical terms nobody plays games on Linux unless they're using something like SteamOS or, technically, Android.
Given how ridiculously hard it is to get a simple application to run across all the various distributions of Linux that exist, expecting something as complicated as a game to run at all is asking way too much.
Windows is ridiculously hard to support, but at least it has sales volume to justify the work necessary to get a game launched. Linux doesn't.
There's no need for adventure for me. I prefer to code on Linux and not need to reboot into Windows. Playing games on Linux IS the convenient way for me.