Portal: Prelude’s fan-made prequel gets a fancy RTX remaster, and it costs nothing (except a powerful graphics card)

After zhuzhing up Portal with a shiny RTX version last year, Nvidia is at it again. This time, it’s ray-traced the cube-shaped edges of Portal: Prelude, the fan-made mod that serves as a full-length prequel to Valve’s beloved puzzler. You can go and download Portal: Prelude RTX for free now, as long as you’ve got the hardware to run it. Read more