No missable achievements (plus 23 unknown)
Sign in with Steam or Xbox to track your progress, and:
Completed Chapter One
A Polite Conversation
Completed Chapter Two
The Universe's Machine Epsilon
Algorithmic Composition
The Chinese Room
Completed Chapter Three
Boolean Logic
Thinking Outside of the Box
Completed Chapter Four
This is a Lock
Completed Chapter Five
Completed Chapter Six
Completed Chapter Seven
Completed The Game