It's also exponentially harder to make a Linux port for a AAA game than for an Indie game, for many reasons. The most obvious ones being that most indie games a

It's also exponentially harder to make a Linux port for a AAA game than for an Indie game, for many reasons. The most obvious ones being that most indie games are made with an off the shelf cross platform engine (Unity, unreal), and that AAA titles require a lot more hardware resources, and optimization of this usage is often platform specific (what helps OpenGL might not help DirectX, etc).