This game has the privilege of being one of only a handful from my Steam library that I've actually asked to have permanently removed from my account by Steam support.
Cashing in on the nostalgia for classics like the Descent series (all of which are vastly superior to this dreadful "game"), Miner Wars 2081 is a broken mess.
Everything about the game is just "off" somehow. The scale is really weird and difficult to describe. Rather than feeling like you're flying around in a spaceship inside an enormous space station, it feels like you're driving a Micro Machine around someone's living room; nothing's got a sense of proportion or frame of reference and the design of the space station interiors seems designed to confuse, with little in the way of landmarks or anything that might actually make it look like it could be inhabited by actual people.
The combat mechanics are basic and the menu/inventory system is a nightmare to navigate, let alone understand.
The voice acting is pretty poor and what little I could glean of the story from the opening mission made no sense, being totally without context. After the first mission ends you're dumped into a world/solar-system map with no idea where to go next or why. Pretty much wherever you do decide to go, some people will autoamtically attack you, but it's not made clear why that's happening either, or if any of the ships are meant to be friendly.
Finally, the setting is so utterly absurd that it does nothing to help this sorry excuse for a game. The idea that anything on/around Earth could survive its destruction by the Sun exploding is total nonsense. That functioning societies could spring up from the debris and even start building new structures in a scant few years after an apocalyptic event is the metaphorical icing on this turd of a cake.
I cannot urge you strongly enough - do not buy this game under any circumstances.