Angry Birds (video game) was being played, the staff liked the characters, and the team elected to design a game around them. In early 2009, physics games, such as "Crush the Castle", were popular flash-based web games, so the Rovio team was inspired by these games. During the development of "Angry Birds", the staff realized the birds needed an enemy. At the time, the "swine flu" epidemic was in the news, so the staff made the birds' enemies pigs. Angry Birds was the studio's 52nd produced game and on its initial release, the game did not sell many copies. After Angry Birds was a
Angry Birds Epic CNET praised the solid gameplay, but did not like the numerous in-app purchases combined with the slow delivery of in-game items, as well as the always online to play requirement. Angry Birds Epic Angry Birds Epic is a free-to-play role-playing video game that is the ninth installment in the "Angry Birds" series, developed by Chimera Entertainment and published by Rovio Entertainment. The game was announced on March 12, 2014 and features turn-based combat and a crafting system. The game was soft launched March 17 on the Australia, New Zealand and Canada App Store, and was released worldwide on June 12,