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).
Listen to all she has to say.
Strike a deal.
Do not allow the serpent to fill you with doubt.
Try, fail, try again, fail again, eventually succeed.
Receive guidance from Elohim's messengers.
Collect all pieces of written information.
Laugh at the pointlessness of existence.
Communicate with your double.
It's not for everyone!
It is never too late to accept Elohim's forgiveness.
Solve every mystery in every land, that you might aid those who walk in your footsteps.
Restore a backup version of yourself.
Bring the end of your generations.
Reach the top.
Get everything on your own.
Expose the flaws in the code.
Find a Messenger's abode.
That's what axes are for!
See what the others have to say.
Don't just peek. Do it.
Stand on your own two shoulders.
Accept Elohim's wisdom.
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.
A little curiosity never killed the cat.
Search for other lands.
Tell the others what you think.
...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.