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