Full list of all 30 What in the World? achievements worth 300 gamerscore. It takes around 1-2 hours to unlock all of the achievements in the base game.
The base game contains 20 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 10 achievements worth 100 Gamerscore.
Beat Level 2
Beat "Celebrity" Category
Beat Level 5
Beat all the categories and levels
Beat "Characters" Category
Beat "Cities and Countries" Category
Beat "Cinema & Tv" Category
Beat "Brands" Category
Beat Level 4
Beat Level 3
Use 50 Letter Aid
Beat Level 1
Unlock Level 5
Use 25 Letter Aid
Connect with Facebook
Use 10 Letter Aid
Unlock Level 4
Unlock Level 3
Unlock Level 2
Solve a level using the microphone
Solve 10 cards using the microphone
Play the game for 5 consecutive days
Beat all the categories and levels up to level 6
Beat "Cinema & Tv" Category up to level 6
Beat "Celebrity" Category up to level 6
Beat "Brands" Category up to level 6
Beat "Cities and Countries" Category up to level 6
Beat "Characters" Category up to level 6
Beat Level 6
Unlock Level 6