An update for the Steam DB hints at Linux support for Metro: Last Light, which was first published by Deep Silver on May 14 in North America and May 17 in Europe on Windows PC, Xbox 360 and PlayStation 3. More copies of all versions of Last Light sold worldwide in its first week of release than in the first three months of release for Metro 2033.
At the time of writing, the last database update made to Metro: Last Light mentioning Linux was made seven hours ago. Deep Silver creative director, Guido Eickmeyer, participated in a Reddit AMA four days ago where he said "there is a good chance" of native Linux releases of the company's current and future games.
Polygon reached out to Deep Silver representatives for more information.