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.
Collect all pieces of written information.
Restore a backup version of yourself.
Reach the top.
Don't just peek. Do it.
Do as you're told (for now).
Listen to all she has to say.
Receive guidance from Elohim's messengers.
Find a Messenger's abode.
See what the others have to say.
Tell the others what you think.
Pick up a star.
Try, fail, try again, fail again, eventually succeed.
Accept Elohim's wisdom.
Communicate with your double.
Laugh at the pointlessness of existence.
Get everything on your own.
Expose the flaws in the code.
Do not allow the serpent to fill you with doubt.