The Letter Quest demo here on Newgrounds has been updated to include the first two story comics from the official release of Letter Quest, and lots of other tweaks and changes.
We've also officially released Letter Quest for PC and Mac, you can buy it or get more details at www.letterquestgame.com. There's also a new downloadable PC demo to try!
Thank you so much to the Newgrounds community for all of the amazing feedback, wonderful comments and criticisms, and great reviews of Letter Quest! We hope to make many more games, and hope to bring them to Newgrounds!
Cheers!