As a recommendation I'd always suggest having a look at the GitHub repo for Doom & Doom3 (from John Carmack at id Software). Doom written in C and Doom3 in predominantly C++. GitHub - id-Software/DOOM: DOOM Open Source Release[^] GitHub - id-Software/DOOM-3-BFG: Doom 3 BFG Edition[^] Although a lot of the work is in game development and graphics (and in C), I found it useful to look at how it highlights good project and code layout. Like people have said already in this thread, I wouldn't look at the code to "learn how to write code" but rather to learn what good "coding practices" result in. Keep in mind some of this code has been cleaned up before publishing on GitHub.

K