I've got a couple...
One was on PC, don't know what the hell this PC was but it was basically a 2D dinosaur fighting game. You could play as a T-Rex, triceratops, stegosaurus, ankylosaurus or a brontosaurus...my PC had an orange/black monitor and no mouse, 3.5" floppy but this game was installed to the drive. In addition to the fighting, there was an educational bit that showed some slides about how fossils are formed.
Probably had a super generic name but I'd recognize the gameplay if I saw it.
Then there was a game on the NES, you could have an army that would fight another army on the field, siege a castle, and then to capture it you would have a side scrolling sword fighting section. That's about all I remember from it but I enjoyed it quite a bit even though it frustrated 8 year-old me something awful, lol