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.
Reach the top.
Get everything on your own.
Tell the others what you think.
Stand on your own two shoulders.
Find a Messenger's abode.
That's what axes are for!
Don't just peek. Do it.
A little curiosity never killed the cat.
Enter the Land of Faith.
Successfully engage in co-op mode with yourself.
Use the power of air to your advantage.
Run the sand through your robot hands.
Search for other lands.
Try, fail, try again, fail again, eventually succeed.
...but let's be honest, it works the same.
Use the connectors to win a prize!
Accept Elohim's wisdom.
Pick up a star.
Enter Elohim's temple.
Pass the initial checks.
Receive guidance from Elohim's messengers.
Communicate with your double.
Laugh at the pointlessness of existence.
Strike a deal.
Do as you're told (for now).
See what the others have to say.
Expose the flaws in the code.
Do not allow the serpent to fill you with doubt.
It's not for everyone!
Restore a backup version of yourself.
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.