What words would you make if you have not 7, but many letters at your disposal? Use Special (Colored) tiles in big words to score as many as 300 points with a single word.
Or make many small words, clear the stacks and be rewarded with Board Clearance and Time Bonuses
With 20 achievements to unlock, you have not bested StackO unless you've owned each and every one of them.
– The official StackO jeer
Compete with players all over the globe to show up on the leaderboards. Not only that, StackO shows you your rank for each game as well as of your entire career.