Here is the full list of all 11 Gorogoa achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Finish the game.
Complete Chapter Five.
Complete Chapter Four.
Complete Chapter Three.
Complete Chapter Two.
Complete Chapter One.
Set the clock tower to the right wrong time.
Complete the falling rock puzzle on the first try.
Complete the game in under 500 moves.
Complete the game in under 30 minutes.