https://wccftech.com/serious-sam-the-first-encounter-ray-traced-trailer/

Serious Sam: The First Encounter is back and looking better than ever thanks to a new unofficial port that fully supports ray tracing features.

This port, developed by sultim_t, features a reworked graphics engine that enables ray tracing support. With compatible hardware, it is possible to calculate global illumination, reflections, and more in real-time, making the game look amazing. Check out the launch trailer below.