Sounds like my situation.

I have been able to put Unity on the back-shelf because it's just a hobby for me. I have been experimenting with Phaser / PIXI / P2 + ScalaJS in the meantime while I wait for the Editor to come to Linux, which will hopefully happen in the near future [1].

As for actually playing games, a surprising amount of the ones I try have been ported over to Linux already. For the rest, I use Steam Live Streaming from a Windows 7 box which works pretty well. Steam can even stream non-Steam games (blizzard ones for example). I tried using it to stream the Unity Editor, but it was just too clunky for my tastes.

1: http://blogs.unity3d.com/2015/07/01/the-state-of-unity-on-li...