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.
Collect all pieces of written information.
Do not allow the serpent to fill you with doubt.
Expose the flaws in the code.
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.
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.
Try, fail, try again, fail again, eventually succeed.
Accept Elohim's wisdom.
Tell the others what you think.
Pick up a star.