Here is the full list of all 59 The Talos Principle 2 achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Maintain the status quo in New Jerusalem... for now.
Help Rand get elected mayor.
Tell Purple what to do about his voice.
Refuse to go along on the expedition.
Make a choice that will define the future.
Go above and beyond to change the future.
Defy death.
Solve all puzzles and monuments.
Solve "Switcheroo" without using the "keep connections" option.
Solve "Loop" without doing multiple circles.
Solve "Seesaw" puzzle by picking up only one connector.
Help Byron get elected mayor.
Find every manifestation of the past.
Find 10 ancient human artifacts.
Discover a vision of things to come.
Activate the tower on the High Plain.
Collect all 12 of Trevor's audio logs.
Solve all regular puzzles.
Collect all 12 of Lifthrasir's audio logs.
Explore all of the lost labs.
Activate the tower in the Anthropic Hills.
Use a functioning Somnodrome.
Activate the tower in the Western Delta.
Free Prometheus from his chains.
Activate the tower at the Circular Oasis.
Activate the tower at the Verdant Canyon.
Activate the tower on the Southern Coast.
Finish all three text adventures in the exhibition.
Explore New Jerusalem in its entirety.
Have a heated argument with Thecla.
Explore the Museum of the Simulation in its entirety.
Visit New Jerusalem's Museum of the Simulation.
Tell Schuyler what to do with his life... or not.
Activate the tower in the Lost Marshes.
Activate the tower in the Flooded Valley.
Find one Prometheus spark.
Activate the tower on the Desolate Island.
Return to a puzzle for a second attempt.
Read 30 texts on terminals.
Enter the Megastructure.
Activate the tower in the Eastern Wetlands.
Discover a trace of what happened on the island.
Activate the tower at the Wooded Plateau.
Solve one Sphinx monument.
Read 10 Social Media entries.
Experience a datastream overload.
Talk to each member of your team.
Get involved behind the scenes.
Find an ancient human artifact.
Solve one Prometheus monument.
Activate a Prometheus monument without stopping the spark-chasing music.
Activate the tower at the Grasslands Ring.
Build one bridge.
Solve one Pandora monument.
Work on solving a puzzle for more than 20 minutes.
Explore content on a lost terminal.
Embark on the expedition.
Provide your digital signature to someone.
Finish the calibration process.