FishVille

FishVille is a defunct real-time aquarium simulation game developed by Zynga that was available as an application on the social-networking website Facebook. The game allowed members of Facebook to manage virtual aquariums by rearing fish. As of October 2011, FishVille had 1.6 million monthly active users. The game was discontinued on December 5, 2012.

==Gameplay== When users begin the game, they can start by choosing a background and gravel for their aquariums. The users start with four fish already present in their tank. A tutorial then commences which takes the user through some of the basic functions of the game which include adding fish to the aquarium, feeding and selling fish. Upon selling fish, the user earns "sand coins" and experience points (XP). The player also earns XP and coins for completing certain tasks and helping in neighbor missions. At certain XP benchmarks, the player's level rises. As the player obtains more items and progresses through levels, fish, decorations, environments, creatures and plants become available to them via the "store" where items can be purchased using either sand coins or "sand dollars". Sand dollars are earned by leveling up, completing offers or microtransactions.