The performance issues on modern hardware are horrific and the third-party fix appears to be unavailable. For $10, they could at least make sure it works... It seems like a run-of-the-mill RTS from what I played (which wasn't much.)

I played this a lot as a kid.

I always liked the fact your heroes are immortal, but if they die get reset to base level. The end level was an utter brute from memory.