So far, I am really liking this game.
There's a fairly simple but interesting economic model in place which is very reminiscent of Aurora. In Aurora, you have accessibility thingamajigs that determine your mining capability for example, in SL3K you have mineral value, which combined with your mining Tech level for that mineral determines your output.
There's also crime and piracy modeled, insurgencies and rebellions, it's fairly interesting, yet it doesn't blow your brain up. I think it's exactly because of this simplicity, that makes the whole economic period of the game so complicated. Where to build mines, where to build habs, etc, etc.
But I think it's a game about diplomacy, where the relevant resource for influence is.. well, basically, your industry. Trading trade goods brings you money, and is beneficial for both sides, and on the other hand, giving someone with vastly more military power a 'good' deal could help you live longer.
I'll just make it clear here: I am not gonna make alliances for alliances sake. If I make an alliance, it will be as 'protection' which will of course come with it's own fees and taxes. See you in game!