Hasbro Scrabble Upwords You and your opponents spell words with stackable letter tiles on the special gameboard to score points Build words by playing letters across/down on the board and by stacking letters on top of letters already on the board to form new words Its this 3D game that makes Scrabble Upwords so unique and challenging to play Score points for each letter in your word and every letter tile under each letter of your word Letters can be stacked five tiles high--so your score can really add up fast Build words stack letters, score high and have fun