Here is the full list of all 31 Word Factori achievements.
find all letter recipes
build 10,000 boxes
discover 50 stickers
build 96 words
complete 7 words of the day
build 5,000 boxes
discover all secret characters
complete all secret levels
finsh all levels
complete all main levels
complete all challenge levels
discover 25 stickers
place 500 buildings
discover a sticker by typing your own word
discover 50 recipes
find a recipe for each letter
throw a building off screen
spin buildings 20 times
build 24 words
build a word that you typed
type your own word
discover 10 stickers
discover 20 recipes
discover your first secret recipe
complete a word of the day
build 12 words
complete a challenge level
discover your first sticker
finish the tutorial levels
build 100 boxes
discover your first recipe