This game is still amazing. I never played it as a kid, but bought the Definitive Edition last year on steam. Already have > 600 hours on it.

Beat RTS ever in my opinion.

Check out big tournament to get an idea of the current scene: https://youtu.be/6krbA4jTUqE

Also I didn't play multiplayer until last month, most of that 600 hours was spent in the many many excellent single player campaigns