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