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.
It is never too late to accept Elohim's forgiveness.
Reach the top.
Listen to all she has to say.
Don't just peek. Do it.
Do as you're told (for now).
Get everything on your own.
Expose the flaws in the code.
Restore a backup version of yourself.
Try, fail, try again, fail again, eventually succeed.
Laugh at the pointlessness of existence.
Find a Messenger's abode.
See what the others have to say.
Accept Elohim's wisdom.
Tell the others what you think.
Pick up a star.
Receive guidance from Elohim's messengers.
Communicate with your double.
Do not allow the serpent to fill you with doubt.
Collect all pieces of written information.