5. Plants vs Zombies
Platforms: Google Chrome, PC, Mac OS X, iOS, Xbox Live Arcade, PSN, Nintendo DS, DSiWare, Bada, Android, Windows Phone, PS Vita, BlackBerry Tablet OS, BlackBerry
As one of the most-played tower defense games of all time, this classic doesn’t need an introduction – heck, even my grandma has played it. For the two people in the world who haven’t played it, though, here’s the gist of it. Plants vs. Zombies, developed by PopCap, is a simplified take on the tower defense format, which casts you as a homeowner trying to defend yourself from zombies attacking your backyard (who, apparently, haven’t had the bright idea of just attacking the front of your house). To stop them, you use a huge variety of weaponised flora, all powered by sunlight which, naturally, falls from the sky. There’s a reason why it’s so popular, and that’s because it’s fun, accessible, and humorous – basically the Holy Trifecta of good casual videogames.