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).
Receive guidance from Elohim's messengers.
Bring the end of your generations.
It is never too late to accept Elohim's forgiveness.
Reach the top.
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.
Don't just peek. Do it.
Laugh at the pointlessness of existence.
It's not for everyone!
Restore a backup version of yourself.
Get everything on your own.
Communicate with your double.
Expose the flaws in the code.
Find a Messenger's abode.
Stand on your own two shoulders.
Accept Elohim's wisdom.
Enter the Land of Faith.
A little curiosity never killed the cat.
See what the others have to say.
Successfully engage in co-op mode with yourself.
That's what axes are for!
Try, fail, try again, fail again, eventually succeed.
Use the power of air to your advantage.
Run the sand through your robot hands.
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.