Comment # 8 on bug 71239 from Krzysztof A. Sobiecki

(In reply to comment #5)
> I can confirm setting MESA_GL_VERSION_OVERRIDE=3.2
> MESA_GLSL_VERSION_OVERRIDE=150 gets the game to start for me
> 
When I force only MESA_GLSL_VERSION_OVERRIDE=150 it also works, but I
automatically switch to OpenGL 3.2.