On April Fools' Day, a trailer for a ray traced source port of the original Doom emerged on YouTube. Despite the timing, this mod is anything but a joke — it really works, and you can download it right now.
The mod is called PrBoom: Ray Traced, and it's on GitHub here. Essentially, sultim_t managed to add ray tracing to the popular PrBoom source port, which is noted by Doom enthusiasts for its accuracy. (It's not the most popular port, though — that title belongs to the more mod-friendly GZDoom). The RTX effects add an incredible amount of atmosphere and dread to the simple graphics of 1993, and the ultra-saturated colored lighting is reminiscent of early '00s shooters like Unreal.
