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