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.
Collect all pieces of written information.
Communicate with your double.
Laugh at the pointlessness of existence.
Solve every mystery in every land, that you might aid those who walk in your footsteps.
It's not for everyone!
It is never too late to accept Elohim's forgiveness.
Restore a backup version of yourself.
Bring the end of your generations.
Reach the top.
Listen to all she has to say.
Don't just peek. Do it.
Find a Messenger's abode.
Get everything on your own.
Expose the flaws in the code.
Stand on your own two shoulders.
Enter the Land of Faith.
That's what axes are for!
See what the others have to say.
Successfully engage in co-op mode with yourself.
Tell the others what you think.
Use the power of air to your advantage.
Run the sand through your robot hands.
A little curiosity never killed the cat.
Try, fail, try again, fail again, eventually succeed.
Accept Elohim's wisdom.
Search for other lands.
...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.