1993 Doom gets ray tracing, for real

No joke, a modder has added full ray tracing support to the original Doom, and you can play through all of the first three episodes right now

Classic Doom with ray tracing? Sure – Destructoid

Doom Gets Ray Tracing

Experience Next-Gen Upgrades and New Content in Doom Eternal's Update 6 - Xbox Wire

Doom: Ray Traced mod enables raytracing in almost 30 year old classic FPS game

Doom (1993), now with ray tracing, Page 3

id Software's Original DOOM Game Gets Ray Tracing Mod, Here's a First Look at Gameplay - TechEBlog

This is what RAY TRACING does to your FPS. 4k 60fps with ray tracing is just not possible on XSX or PS5 : r/XboxSeriesX

DOOM Eternal - Next Gen & Update 6 Release Notes

The Ultimate Doom - RTX On - Ray Tracing - Test 1 [3440x1440]

Doom Gets Ray Tracing

DOOM 1993 4K Ray Tracing, RTX 4090, Ryzen 9 7950X