I still have that game. It runs on four outa six of my machines at home.
From 2Mhz 8086

to 486-66Mhz
under DOS
If you have a 10Mhz machine, you'll get full speed drawing SC's 3d rotating map.
Win 98 dosen't seem to support it, though. win gives an "Invalid instruction".
One sweet game. Trying to hit another Earth Cruiser with those seeking Nukes is tough!
That game has seekers, point defence, cloaking, fighters, shields, crew subVersion

, regenerative "armor", inertialess engine, self-destruct, crystalline weapons, etc.
And the tactical combat is great. You can swing past the planet for a gravity assist, avoid the asteroids. A real cheap tactic is to go into a really low orbit around a planet and launch seekers each time you pop out, and the planet will absorb a lot of fire for you.
Ahh, memories.