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