Here is the full list of all 20 Late Shift achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Watch all seven endings
Reject the offer
Go home alone
Go to the Tchois
Find all main chapters
Take the high road
Watch four endings
Accept the offer
Don't cross the line
Don't give in
Enter the wrong code
Convince Parr it's a fake
Fall for the bluff
Defeat the odds
Split the share 50/50
Pull the trigger
The key to friendship
Don't fight
More than just friends?
What are the chances?