Here is the full list of all 31 Sinless achievements.
Not dress properly
Beat the game
Complete the third act
Use a levelhack
Fix the cyberslut
Get a Prog pro
Read all the news
Complete the second act
Use a prog hack
Fix Poochie
Get something from Anne
Have a "dead end" conversation
Get a score of 12000 in Ghostface
Get a score of 5000 in Ghostface
Look at yourself
Complete the first act
Get 30 kills in mojojoe
Get 10 kills in mojojoe
Change the light
Be annoying
Check out the picture
Get a cornbun
Look carefully
Lose
Pop the Prog
Check newsfeed
Play ghostface
Get a pearpod
Get an apple
Make bed
Start the trip