A developer known as RaYRoD TV has released a free mod that lets you play Mario Kart 64 inside a VR headset. The mod adds head tracking, so when you turn your head the view changes just like in real life, and it gives the game a 3D depth effect. The mod is available for free on GitHub and was spotted by X user BeardoBenjo, who posted a clip of the Koopa Troopa Beach track showing a first-person view of its tunnel shortcut. Engadget

The project builds on SpaghettiKart, an unofficial PC version of Mario Kart 64 developed by a group called Harbour Masters. Time Extension RaYRoD TV's VR layer sits on top of that PC version rather than being a separate app. To use the mod, you need to own a copy of the Mario Kart 64 game file or get one from an original cartridge. Engadget

The mod includes a settings menu where you can adjust how strong the 3D effect looks, how high or low your virtual camera sits, and where the on-screen information like lap counters appears. These are the same kinds of adjustments that matter for any VR game that shows a small 3D scene in front of you. The 3D depth setting controls how far apart the left-eye and right-eye images are, which changes how deep the scene feels. Camera height sets your viewpoint within the game. The display placement option lets you keep interface elements in a comfortable spot instead of having them float awkwardly. Engadget

RaYRoD TV has done this kind of work before. The developer has created VR mods for several classic Nintendo 64 games, including Banjo-Kazooie and Star Fox 64. A previous project brought Super Mario 64 into VR with similar features: the 3D depth effect, head tracking, and menus that respond to where you look. GitHub The Mario Kart 64 VR project is hosted in the GitHub repository RaYRoD-TV/MarioKart64-VR. GitHub

The Koopa Troopa Beach clip that appeared on X shows why this is interesting. The track's tunnel shortcut, which you normally see from a camera floating behind your kart, becomes a first-person experience where turning your head changes the view independently of where the kart is going. Engadget's headline called it "not for the queasy," and that captures a real issue: playing a game in first-person VR when the game was originally designed for a flat TV screen can cause motion sickness the original game never had to worry about. Engadget

The broader context here is a community of developers who have been taking classic Nintendo 64 games and rebuilding them to run on modern PCs. Projects like SpaghettiKart exist because people have figured out how to recreate the original game code in a way that can be compiled into a normal PC application. Once a game runs natively on a PC, adding VR features like head tracking and 3D depth becomes much more practical than trying to modify the original, locked-down game files.

What this means in practice is simple. Anyone with a PC VR headset, a copy of the Mario Kart 64 game file, and some patience for VR comfort adjustments can try the mod today. The settings menu suggests RaYRoD TV has built in the options that experienced VR users expect, including adjustments for people with different eye distances and comfort levels. The mod is free, and the code is on GitHub, which means anyone in the VR community can look at it, copy it, and improve it.

The comfort question is worth flagging. Racing games in VR fall into two groups: those built from scratch for VR, and older games that have been adapted after the fact. This mod is in the second group, which means it keeps the original game's camera behaviors that were designed for a TV screen. Mario Kart 64's sudden camera movements when you get hit by an item, the tilting during drift turns, and the shaking when you hit a wall all become physical sensations in VR that the original designers never had to think about. The mod's settings help, but the game itself plays the same way it always did. Anyone who gets motion sick in VR should treat this as an experiment rather than a finished VR product.