Up un peu tardif, j'ai un peu regardé, et je viens de découvrir qu'il existe LZDoom qui correspondrait à ton cas de figure :
https://zdoom.org/downloads
LZDoom is based on an older version of GZDoom. It does not provide all features currently supported by GZDoom but in turn is capable of running the hardware renderer on older hardware which does not support modern OpenGL features.