The extremely popular and fun Plants vs. Zombies released a free sequel today for Android (Plants vs. Zombies 2).
However, you might have some trouble finding it. The first link on the Google Play store is for the "Swiss" version of EA, which "isn't available in your country".
The United States link is here:
https://play.google.com/store/apps/details?id=com.ea.game.pvz2_na&hl=en
