Space Rogue right from Origin? Yeah I see your point there are some similarities. I remember playing Space Rogue on the C64 & and on an 8088 machine with CGA gfx. Jeez, even with four colors it was still a great game. Haven't played Pirates on the Apple IIgs. But from what I can tell from the Youtube videos it looks like a really good investment especially if you have an Apple IIgs.
https://www.youtube.com/watch?v=qp-acTRef_Q
Pirates is such a great game every now and again I fire it up on my SX-64. GOG has a great deal going for Pirates. You get the original DOS version of Pirates in all it's EGA glory and Pirates Gold for just a couple of bucks.