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.
Receive guidance from Elohim's messengers.
Collect all pieces of written information.
Listen to all she has to say.
Laugh at the pointlessness of existence.
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.
Restore a backup version of yourself.
Bring the end of your generations.
Reach the top.
Get everything on your own.
Expose the flaws in the code.
Try, fail, try again, fail again, eventually succeed.
See what the others have to say.
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!
Tell the others what you think.
Don't just peek. Do it.
Run the sand through your robot hands.
Accept Elohim's wisdom.
...but let's be honest, it works the same.
Use the connectors to win a prize!
Pick up a star.
A little curiosity never killed the cat.
Search for other lands.
Enter Elohim's temple.
Pass the initial checks.
Strike a deal.
Do as you're told (for now).
Do not allow the serpent to fill you with doubt.
Internalise the voice of doubt.
Get your user profile.
Free Garrett.
Initiate the ascension process.
Rescue Admin from his prison cell.