Full list of all 17 Subnautica achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Find the Enforcement Platform
Find the Degasi habitat in the jellyshroom caves
Repair the Aurora reactor
Build a habitat
Find the Degasi habitat on the floating island
Build a seamoth
Dive for the very first time
Volcanic Crater
Fossil Record
Voyage to the Bottom of the Sea
Self-Medication
Take Only Photographs
End of the Line
Industrial Exploration
Get Away From Her
Leave It All Behind
I'm So Lonely