Hay Day is a simulation business game. Actually, it is not just a business game. It also incorporates a bit of strategic nature because there is an industrial chain in the game, from crop harvesting in the farm to animal breeding to semi-finished products. The productions are all linked together, so the number of plantings in each link is a test of the player's business strategy. Therefore, this game is not a general mechanical business game, and the playability is very high.