If you loved Starship Troopers 2: Hero of the Federation, try The Devil's Tomb
A bridge between a film you've already seen and one most people haven't. The Devil's Tomb has roughly 3.5× fewer votes than Starship Troopers 2: Hero of the Federation — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the dread mood tag, and they sit in Action / Horror / Science Fiction territory. If that's the register that drew you to Starship Troopers 2: Hero of the Federation, the second film will land in a comparable space — through a different lens.
What The Devil's Tomb is
Middle East. Perpetual noon. Scorched sand. A rescue mission chasing a missing person. What they find: something ancient, something awful, something not human. Soldiers versus the unimaginable. Low-budget effects and high-concept horror collide in this direct-to-video thriller.

