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