Flock! is a puzzle game developed by Proper Games and published by Capcom for Windows, PlayStation Network and Xbox Live Arcade. It was released for Microsoft Windows on April 7, 2009 through Steam and Stardock's digital distribution service Impulse, Xbox Live Arcade on April 8, 2009 and PlayStation Network on April 9, 2009.
The player controls a UFO ("The Flocker") and is tasked with herding animals (sheep, cows, chickens, and pigs) back to the mothership, "The Mother Flocker". This is challenging due to the hazardous environments the animals exist in -- the players must defend their flock against hungry predators, avoid pits of death, and occasionally send their animals flying with catapults. There are 55 single-player levels that span across three seasons: summer, autumn, and winter. There is also a cooperative play mode.
The game also grants access to the same map editor the developers used to make the official levels, so players can make their own puzzles. Players are able to share maps with others via a persistent map server. PC and PS3 users are able to share maps between the two platforms.