The original version of Plants vs. Zombies introduced the traditionally mid-core game mechanic of tower defense to a whole new demographic of users - the "casual player". This latest release from PopCap games sought to do the same, introducing a mass market audience to collectible card games (CCG).

By design, the user-flows and wireframes were able to thoughtfully introduce the casual player to the world of CCG but still communicate a level of depth and complexity that existing CCG players demand in their game play.