Here is the full list of all 12 SpaceDweller achievements.
Complete the game.
Reach star system 6.
Destroy a Hunter.
Make a last shot on enemy flagship with "Mediator" module.
Catalyze satellite or module to 7 LVL.
Sell 30 satellites or modules in a single run.
Collect every satellite and module in game.
Destroy 30 enemy flagships in a single run.
Destroy 20 enemy flagships in a single run.
Catalyze 15 or more items in a single run.
Destroy 10 enemy flagships in a single run.
Get a miss with a 90% hit chance or higher.