Here is the full list of all 20 Woolfe - The Red Hood Diaries achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Be quicker than the dev's and finish A Forest Adrift in less then 4 minutes and 56 seconds
Kill 50 rats.
Chase Woolfe through the woods without dying.
Defeat Woolfe on hard.
Unlock 36 diary entries
Kill a Tesla guard
Kill 100 kickstarter backers.
Escape the guards without dying.
Kill 20 Fairies.
Visit the outhouse in the Forest Adrift
Finish the harbour on hard.
Unlock 18 diary entries.
Drown right after Red tells you she can't swim.
Defeat Woolfe and listen to what Grandma has to say.
Discover all combo's
Defeat the Pied Piper
Defeat the big rat.
Find Reds axe
Roll...
Unlock 6 diary entries.