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.
Get everything on your own.
Strike a deal.
Do not allow the serpent to fill you with doubt.
Listen to all she has to say.
Laugh at the pointlessness of existence.
Solve every mystery in every land, that you might aid those who walk in your footsteps.
Collect all pieces of written information.
Communicate with your double.
Bring the end of your generations.
It is never too late to accept Elohim's forgiveness.
Reach the top.
Don't just peek. Do it.
A little curiosity never killed the cat.
Restore a backup version of yourself.
It's not for everyone!
Do as you're told (for now).
Expose the flaws in the code.
Accept Elohim's wisdom.
Stand on your own two shoulders.
Try, fail, try again, fail again, eventually succeed.
Receive guidance from Elohim's messengers.
See what the others have to say.
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.
Tell the others what you think.
Run the sand through your robot hands.
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.