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.
Collect all pieces of written information.
Strike a deal.
Expose the flaws in the code.
Accept Elohim's wisdom.
Receive guidance from Elohim's messengers.
Laugh at the pointlessness of existence.
Bring the end of your generations.
Listen to all she has to say.
It's not for everyone!
It is never too late to accept Elohim's forgiveness.
Communicate with your double.
Restore a backup version of yourself.
Solve every mystery in every land, that you might aid those who walk in your footsteps.
Reach the top.
Don't just peek. Do it.
A little curiosity never killed the cat.
Do as you're told (for now).
Get everything on your own.
Do not allow the serpent to fill you with doubt.
Stand on your own two shoulders.
Find a Messenger's abode.
Enter the Land of Faith.
See what the others have to say.
Successfully engage in co-op mode with yourself.
Use the power of air to your advantage.
That's what axes are for!
Run the sand through your robot hands.
Search for other lands.
Tell the others what you think.
Try, fail, try again, fail again, eventually succeed.
...but let's be honest, it works the same.
Use the connectors to win a prize!
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.