There’s a handful of games I can think of like Starcon 2 and Master of Orion that have vaguely similar space combat systems in spirit if not in implementation. The ship design system reminds me a lot of the excellent one from Master of Orion too.
The combat system seems fairly unique though. The only game I’ve found that has a similar system where you issue all your orders in advance of the fighting is Dominions 3. And GSB has much much nicer graphics than Dominions and none of the tiresome 4x stuff.