Here is the full list of all 15 Signs of Life achievements.
Discover the fate of the Hermes Captain.
Get brown on you.
Drink an explosion potion. For some reason.
Find a jug of piss. For some reason.
Wreck the Buff Mechington.
Defeat the Buff Mechington with a kick to the butt.
Make a lewd gesture with the Magnetic Inductor while in a bed.
Cook and eat human flesh.
Soil a chicken with dung.
Kill a chicken with an egg.
Craft a rough gem.
Craft a refined gem.
Craft a faceted gem.
Craft a brilliant gem.