Full list of all 31 Outer Wilds achievements worth 1,870 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 17 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 14 achievements worth 870 Gamerscore.
Reach the Eye of the universe in one loop.
Complete the ship log.
Bring an artifact back to the museum.
No going back.
Launch your ship with a gravity cannon.
Enter Giant's Deep ocean fast enough to break through the current.
You tried to escape the solar system.
De-orbit the Hearthian satellite.
End a time loop (Alive) after having taken (and healed) over 1000 damage.
Press the ejection button in the ship.
Use your suit's oxygen in an ill-advised manner.
Pick up all traveler instruments simultaneously with your signalscope.
Eat 10 burnt marshmallows.
Destroy the Model Rocket by flying into the sun or Hollow's Lantern.
Land the model rocket on Attlerock.
Die within 60 seconds of waking up.
Manually fly to the Sun Station.
Ride the face of the wave for at least 15 seconds on a raft.
Reach all 3 Forbidden Archives in a single loop without getting caught.
Yahaha! You found me!
Attempt to use the artifact at a normal campfire. Well, that settles that!
Escape your pursuers by jumping to your "death" instead of dodging past them.
Attempt to use the second artifact prototype. Curiosity killed the cat, but a time loop brought it
Raft around the Stranger in under 90 seconds.
Be woken up from a dream 5 different ways in a single loop.
Have your spine adjusted by a pursuer.
This knowledge isn't going to forbid itself!
Shoot the Little Scout at the artificial sun in the Stranger.
Swim through the dam grate. Not everyone makes it!
Stand your ground beneath a moving chain elevator.
Render the Deep Space Satellite inoperable.