Hay Day is a free-to-play mobile farming simulation game developed and published by Supercell, first released for iOS in June 2012. It was Supercell's debut mobile title and quickly became one of the top-grossing games on the App Store.\n\nPlayers build and manage their own farm, growing crops, raising animals, and producing goods to sell at the roadside shop or trade with other players. The game features a charming pastoral art style and a steady progression loop of unlocking new crops, buildings, and equipment.\n\nBeyond the farm, players can expand to a fishing lake and a town, fulfill orders from boat and truck deliveries, and join neighborhoods (guilds) to cooperate on derby competitions. The social and trading elements give the game strong long-term engagement alongside its casual core loop.