Bringing a Classic into the Future: Portal with RTX is Here The cake may be a lie, but the lighting certainly isn't. is officially available as a free DLC for anyone who owns the original Portal on Steam. This isn't just a simple texture pack; it’s a full-scale reimagining of Valve’s 2007 masterpiece, built to showcase the cutting-edge power of real-time path tracing. What is Portal with RTX?

Be warned: those "Next-Gen" visuals come at a cost. To experience this version, you’ll need a GPU capable of hardware-accelerated ray tracing. Portal With RTX - Gameplay Walkthrough (FULL GAME)

—it will appear as a separate standalone entry.