Here is the full list of all 27 Parcel achievements.
Complete 10 levels created by other users.
Create and share a level for others to play.
Unlock Magna.
Find the missing shipment.
Hackman did his best to prevent you from being able to do this. Do it anyway.
Unlock Hackman.
Unlock Porter.
Unlock Shade.
Unlock Clobber.
Collect all Dataspheres originating from Spectacle accounts.
Collect all Dataspheres written by Special Place users.
Collect all Dataspheres.
Complete all Ventilation levels.
Complete all Factory levels.
Complete all Greenhouse levels.
Complete all Containment levels.
Complete all Processor levels.
Complete all Basement levels.
Complete all Common Place levels.
Complete all Special Place levels.
Complete all the levels in the game.
Feel good for thinking you've saved humanity.
Spare what is to be spared and complete marked levels.
Destroy what can be destroyed and complete marked levels.
Play through the game without the fifth wheel.
Find the hidden easter egg.
Do everything else and ascend to greatness.