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