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