With the low player count on this site I've been looking for other similar games online. The best I've found is Triton II - turn or real time space conquest game that feels like Battleforces with multiplayer diplomacy and simultaneous moves but has slightly more involved economic side and fewer unit types.

I can't handle the real time version so I just play turn games. I was waking up in the middle of the night worried about opponents launching attacks on me that I wasn't responding too - and they were! I think some players strategy was to attack when they thought others would be offline so they couldn't respond in time.

Anyway I recommend you check it out.

If any of you play Triton or have any recommendations, let me know!