Full list of all 40 The Talos Principle achievements. It takes around 25-30 hours to unlock all of the achievements in the base game on Windows.
The base game contains 36 achievements, and there is 1 DLC pack containing 4 achievements.
Listen to all she has to say.
Collect all pieces of written information.
It is never too late to accept Elohim's forgiveness.
Reach the top.
Do not allow the serpent to fill you with doubt.
Expose the flaws in the code.
Don't just peek. Do it.
Receive guidance from Elohim's messengers.
Do as you're told (for now).
Get everything on your own.
Find a Messenger's abode.
Laugh at the pointlessness of existence.
See what the others have to say.
Communicate with your double.
Tell the others what you think.
Try, fail, try again, fail again, eventually succeed.
Accept Elohim's wisdom.
Pick up a star.
Restore a backup version of yourself.