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.
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.
It's not for everyone!
A little curiosity never killed the cat.
Do as you're told (for now).
Get everything on your own.
Strike a deal.
See what the others have to say.
Communicate with your double.
Stand on your own two shoulders.
Laugh at the pointlessness of existence.
Try, fail, try again, fail again, eventually succeed.
Receive guidance from Elohim's messengers.
Restore a backup version of yourself.
Find a Messenger's abode.
That's what axes are for!
Tell the others what you think.
Enter the Land of Faith.
Successfully engage in co-op mode with yourself.
Use the power of air to your advantage.
Run the sand through your robot hands.
...but let's be honest, it works the same.
Use the connectors to win a prize!
Accept Elohim's wisdom.
Pick up a star.
Search for other lands.
Enter Elohim's temple.
Pass the initial checks.
Expose the flaws in the code.
Do not allow the serpent to fill you with doubt.
Bring the end of your generations.
Internalise the voice of doubt.
Collect all pieces of written information.
Solve every mystery in every land, that you might aid those who walk in your footsteps.
Free Garrett.
Get your user profile.
Initiate the ascension process.
Rescue Admin from his prison cell.