Here is the full list of all 45 Mysterious Space achievements.
Accumulated 10,000 points during the course of a game. Could have gone for an "it's over 9000" thing. Didn't.
Accumulated 20,000 points during the course of a game.
Accumulated 30,000 points during the course of a game.
Accumulated 40,000 points during the course of a game.
Accumulated 50,000 points during the course of a game.
Ooh! Barracuda!
We know you have a choice in video games to die in; thank you for choosing Mysterious Space.
Achieved maximum equipment slots with a ship.
The truth behind Sector ZZ-Omega-9 will be revealed!
I guess?
"That's 5 Hull upgrades I could have bought!"
;)
Helped an outpost!
Helped 5 outposts! Better than bad; that's good!
Helped 10 outposts! Truly great!
Nothing happens.
Dying certainly isn't the best possible ending...
Simply winning as this ship is special enough!
Completed a barren world without killing any enemies.
Completed a desert world without killing any enemies.
Completed a forest world without killing any enemies.
Completed an ice world without killing any enemies.
Completed a lava world without killing any enemies.
Completed a mining world without killing any enemies.
Completed an ocean world without killing any enemies.
Have one player receive a negative score in a split-screen co-op game.
Completed a crystal world without killing any enemies.
Have three adjacent Fuel which are all (roughly) the same color.