Zynga has announced through Reddit's Bitcoin subreddit that they are "conducting a Bitcoin test" to further expand its payment options for FarmVille 2, CastleVille 2, ChefVille, CoasterVille, Hidden Chronicles, Hidden Shadows and CityVille.

This payment option is being tested through Bitpay. It is not know just how long this "test" will last or if Zynga will expand Bitcoin payments to other games, as it was not mentioned in the post.