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