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