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