Here is the full list of all 10 AR-K: The Great Escape achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Finish Episode 3
Retrieve the Sphere
Catch out the assassin of the former superintendent
Listen, at least once, all the witnesses statements about the murder
Listen over 1000 lines of dialogues in the game
Look at the science-fiction magazines
Caress to Amber 10 times
Sabotage the power plant
Watch the credits through the menu
Work a full day