According to the folks at Ars Technica, Valve may be working on a tool called Steam Play that will help some Windows games run on SteamOS. They base this speculation on a Reddit thread that showed Steam GUI files that talked about Steam Play. This tool will have a list of supported titles and will also allow for testing of games that aren't on the list. This sounds like a pretty good tool, but nothing is firm yet and no one knows how it's going to work. However, if Valve can get this out in the wild it might move more people over to SteamOS. With all that said, some caution is warranted before getting too excited about these possibilities. For one, we don't know what specific form Steam Play will take. Valve could simply be preparing a wrapper that lets users run existing emulation tools like Wine and DOSBox on top of SteamOS without actively advancing the state of that emulation directly. (Valve has not responded to a request for comment from Ars Technica).