Even prior to Star Cruiser, the devs of it made Wibarm, a very Thexder-like robot shooter with rpg elements and third person 3d building interior sections. https://youtu.be/zhJdGjqNqME?si=uD7pOAWqloNYco6L

Watched a video recently covering every Japanese FPS and noticed a lot of early, pre Wolfenstein 3d games being an evolution of the Dungeon Master-esque 3d dungeon rpg genre, sometimes being squarebased movement with realtime gunplay, but Star Cruiser and Wibarm seem to be notable for polygon usage.