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