I saw Starship Troopers in the theater back in '97 with my dad. I was nine at the time, and my dad definitely got some dirty looks from people for taking me, but I absolutely loved it.
I ended up reading the actual book later that year, buying all the movie tie-in comic books, I collected the trading cards, I watched the cartoon every day before school, I had a bunch of the action figures, I played the hell out of "Starship Troopers: Terran Ascendancy" on my first PC, I've got all of the sequels, and I actually have a couple of the rubber stunt prop Morita assault rifles (one of the carbine variant, and one of the full-size variant with the underbarrel shotgun).
If you're looking for a modern game with a bit of a Starship Troopers vibe to it, I've been playing "Helldivers" lately with a couple friends. It's definitely got a little bit of Starship Troopers in its blood.