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.
Communicate with your double.
Listen to all she has to say.
Collect all pieces of written information.
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.
Bring the end of your generations.
Internalise the voice of doubt.
Reach the top.
Laugh at the pointlessness of existence.
Don't just peek. Do it.
Receive guidance from Elohim's messengers.
It's not for everyone!
Do as you're told (for now).
Get everything on your own.
Strike a deal.
Expose the flaws in the code.
Restore a backup version of yourself.
Do not allow the serpent to fill you with doubt.
A little curiosity never killed the cat.
Accept Elohim's wisdom.
See what the others have to say.
Try, fail, try again, fail again, eventually succeed.
Stand on your own two shoulders.
Find a Messenger's abode.
That's what axes are for!
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.
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.