I noticed this weekend that some of my Steam games are now supported on Linux (Crusader Kings 2 from Paradox to be specific). Despite being out of the Ubuntu desktop scene for a while, I can't begin to say how much joy this brings me.

I'd love to know what cross platform tools Paradox may be using to achieve this.

i would like to hope that valve (via the associated steamworks related SDK they provide) creates a set of tools that make porting to linux a breeze for developers. I don't care if they have to target a specific distribution of linux, and or only support a specific set of video cards. I m sure if they take the first step, build the momentum, they can get a snowball effect going.

It's nice that this is happening, a lot of indie games already have mac/linux support. I just hope it'll get even better (even on mac there are a lot of games that aren't supported yet)