This bundle includes 5 Word HTML5 games where you can connect letters to form word.
It also features Emoji Word, a brand-new title exclusive to this bundle and not available for individual purchase.
The add-on is an additional feature added to the game and it requires the base game in order to work, below are the add-ons that are compatible with this game:

Enhance your game with an integrated leaderboard system where players can submit their scores and view the Top 10 rankings. Add Add-on.