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.
Go to the Tchois
Go home alone
Enter the wrong code
Fall for the bluff
Don't fight
More than just friends?
Split the share 50/50
What are the chances?
Convince Parr it's a fake
Reject the offer
Accept the offer
Pull the trigger
Watch four endings
Defeat the odds
Take the high road
Find all main chapters
Watch all seven endings
The key to friendship
Don't cross the line
Don't give in