Note that I've linked the latest version at the time of writing this (3.0.2), the original 3.0 version with its changelog is available here: https://github.com/LostArtefacts/TR1X/releases/tag/3.0

For a quick rundown of things: Tomb Raider (1996) is the very first game of the critically acclaimed Tomb Raider series made by the late Core Design. Its available to buy on Steam and GOG (as a bundle of the first 3 games), with remastered versions of the first 3 games set to release in Feb. 14, 2024

Unlike the rest of the "classics", Tomb Raider 1 was a DOS-only application, which is rather inconvenient to get it working; or it would be if the fans didn't figure out a way to get the TombATI version of the game (a port made for very old ATI cards) working on the modern Windows OSs.

TR1X is made by reverse engineering the aforementioned TombATI version (by employing the methods from a similar project for Tomb Raider 2 named TR2Main, which is also where the previous name Tomb1Main is inspired from), and vastly improves upon it. The changes are far too many to list here, but the highlights include much further drawing distance, TR2+ style controlling for Lara, a New Game+ option, fully customizable gameflow (both for modding and making self imposed challenges), Gold expansion (Unfinished Business) support.