Crytek sent out a press release today announcing they will be showing off CryEngine Linux support. Found in a press release today, "During presentations and hands-on demos at Crytek's GDC booth, attendees can see for the first time ever full native Linux support in the new CRYENGINE. The CRYENGINE all-in-one game engine is also updated with the innovative features used to recreate the stunning Roman Empire seen in Ryse – including the brand new Physically Based Shading render pipeline, which uses real-world physics simulation to create amazingly realistic lighting and materials in CRYENGINE games."
Nearly two years ago I wrote about a CryEngine 3 Linux port being in existence and then last year they publicly began hiring Linux game developers and now they're finally ready to show it off! We've also seen in recent months CryEngine-based games promising Linux support.
I'll be at GDC so stay tuned for more Linux gaming news then; the Game Developers Conference is happening next week in San Francisco.