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