В продолжение хороших слухов:
http://www.pcgamer.com/2013/09/30/tripwire-steamos-steam-machines-and-steam-c...
Для Ъ:
We actually just learned about SteamOS a few days before the rest of the world and we haven’t gotten our hands on it just yet. Fortunately Valve gave us a heads up a while back that adding Linux and Big Picture support would “be a pretty good idea going forward.” So we started working on Linux and Big Picture support soon after that. We’ve now got three of our four games released on Linux and one of those games with Big Picture mode support. That has put us in a really good position to take advantage of SteamOS when it is released since it is essentially Linux + Big Picture + Awesome Performance Optimizations + Other Cool Stuff. We’ll be working on setting up the rest of our recent titles with SteamOS support in the not too distant future. We also plan on releasing our next unannounced title with SteamOS support right out of the box.
Хотя еще совсем недавно отмазывались тем, что юзают старую версию движка unreal3, и перенос своих костылей на актуальную версию, в которой есть поддержка онтопика из коробки, будет очень трудозатратен.
