[Roybatty]

The C language is wonderful is because you can look Quake I, II, III, and instantly see the intent. In C++ you can't.

[VMG]

Quake3 is written in C++

[gillianseed]

Although Quake 3 contains some C++ code (in splines/ iirc), it's probably 99% pure C code so I don't think it can be labeled as being written in C++ .

https://github.com/id-Software/Quake-III-Arena