Do you remember the first alien film? That feeling of opression, of horror that's lurking and can strike when it wants? That feeling of make-do when they put together a flamethrower?
But there was never enough stuff, never enough weapons to fight off the alien.
Imagine you're sitting in front of your PC in the dark (easy enough). Your room however is on a spaceship floating through the empty cosmos. Every comms channel is dead. There are dozens, hundreds of ships and stations and planets out there and none of them breathe a word. You might very well be the last person alive.
And your ship is failing. You need to board those other ships because they have the fuel and the spares that you need to keep going. And you know that whatever the reason there's nobody left alive on those ships, whatever killed them, is still on that ship. Waiting in the dark.
You don't go boarding yourself, you send your maintenance drones. Hastily equipped with whatever tools and weapons you have at hand, you send them into the unknown while you sit at your PC, controlling their actions.
What you see is the ultrasound-like "vision" of your drones out there in the dark.
What you hear is what their microphones pick up.
One of them sits on a local power plug, generating energy so you can control doors and airlocks. One of them scouts ahead, always careful. One of them collects the meager scrap you'll need to keep your own and your drones equpiment from falling apart. Every time you use something, it accumulates wear and tear. And if you let maintenance slip long enough, that critical piece of equpiment might well break forever.
But there's never enough parts to go around. There's always something else that you could also fix. Or improve.
If you run with zero fallback depth equipment wise, that lurking thing out there that finally slips through and gets one of your drones might very well spell the end of your life.
So playing it save might seem like a good choice.
But since you're low on spares, again, you need to push further into the wreck you're bording. Explore that next room, just like those before. Always careful. Always desperate.
As you sit in front of your PC, you control your drones directly or give high level orders through a command line interface, which is perfectly fitting because in this crap situation you're in, everything else is also failing.
Storytime over, this game oozes atmosphere and, to me, perfectly captures that alone against the darkness feeling that so many games try to get at. And then you get the big gun(TM) and suddenly you're the powerful one and that feeling is gone.
Fair warning: This game is not played with a mouse. It's basically full keyboard, which may seem off-putting at first but it's really a great way to both control the game (and you need to control 3-4 drones in paralell as well as control doors and airlocks) and help with the feeling the entire game is build upon.
You can drive any one drone with cursor keys or you can give them orders via command line.
You can also define your own aliases to execute several commands with a single word.
For example in order to order your drone #2 to the room called r3 you would type "navigate 2 r3" (note that the navigate will get an autocomplete suggestion after the "n" so you'd really only type n-whitespace-2-whitespace-r3-enter
In order to power the generator that happens to be in r3, you'd then type generator 2 (again, generator gets an autocomplete suggestion).
You could put that into an alias you wrote yourself. My drone that carries the generator is always #2. Variables can be passed to aliases by writing them as $r for rooms for example.
So "power=navigate 2 $r; generator 2" is an alias that I would call from the command line as power r3 (power gets an autocomplete). It would then cause my drone #2 to drive to room r3 and engage the generator there.
Your alias collection, just like your drones and equpiment is part of the stuff you "collect" (you don't collect an alias, you write it yourself, there's no limitation on numbers) and part of the powerbase you build up over time.
It's 20 monies on steam or GOG (get the GOG version, at the same price it should always be GOG that gets the support).
It's well worth the money.