[Donjon]

Here are the results from the Octane2 with the same settings:

I'm not sure everything is with the same settings; in particular, I think the IR4 has different graphics settings. The screenshots of Q3DM1 have really flat lighting, which looks to me like Quake 3's vertex lighting mode.

The screenshots for everything else look like they're using the much better looking but typically slower (it's an additional texture on all map surfaces) lightmap mode.