These games do all the geometry transform on the CPU, so no way for vorpX to inject G3D. Direct 3D (also true for the D39 versions of these games) is only used to draw the already transformed vertices to the screen. Hence they are Z3D only.
I have a few ideas for an additional very-old-games-renderpath that could handle such cases, but that’s one of those things that may or may not happen down the road, so don’t hold your breath. Would be nice to have, but is not a priority.