Edit #2: I'll just leave this here.http://steamcommunity.com/groups/SDVC
An unofficial StarDrive group, where discussion is open and not censored. The Steam forum is pretty heavily moderated and the developer has a habit of deleting threads and banning people left and right before and during a big sale, so this is where people go to talk about the game however they like and not risk having their threads deleted because they didn't like the game.
I bought this game when it was in Early Access and... I thought it was amazing. Full of promises and ideas. Back then, the developper was promising updates pretty much left and right. Multiplayer was to be added to the game. Rare resources, laying mines, better diplomacy, being able to make joint operations with allies; all of these things were to be added to the game... But none -- NONE -- were implemented. The game you can buy right now is very much the same game I bought in Early Access, minus a few bugs. Hell, some core features such as the freighters are still buggy...
So, that being said, is this a good game? Well, it's an okay game. I spent several hours on it so obviously it's not totally terrible. But the thing is, most of these hours (I'd say two third of them -- yes, that much) was trying mods and messing around waiting for the content update to come. When the Developper announced that he screwed up and decided the game was done and could not be updated anymore because of engine limitations, I stopped playing altogether.
To make up for it, the owners of StarDrive will get a discount on his next title and access to some kind of multiplayer mini-game is going to be free. The thing is : his next game is going to be a turn-based strategy game. I bought a real-time strategy game. His next game is going to get as close to a MoO2 clone as he can. Good things for the fans, I guess, but that's not what I bought.
So, to sum things up: this game is half-finished, features are lacking, it lacks polish and is very, very rough around the edges and is developped by one of the worst indy dev ever as far as PR and "I care for my customers" are involved. There are better games out there to spend your money on.
But hey, that's just my opinion.
Edit #1: the multiplayer mini-game has been abandoned as well. Yes, that is yet another fail to put on Zero Sum Games resume. Also, that discount I was talking about? The one the owners of StarDrive will get? That will just be a Steam coupon with an expiration date. Great, eh? Way to tell your customers to hurry it up or screw you, Zero. Way to go indeed.