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.
Collect all pieces of written information.
It is never too late to accept Elohim's forgiveness.
Reach the top.
Expose the flaws in the code.
Listen to all she has to say.
Don't just peek. Do it.
Communicate with your double.
Do not allow the serpent to fill you with doubt.
Do as you're told (for now).
Get everything on your own.
Tell the others what you think.
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.