- Wanuma City is a fictional city created by the game developer Kairosoft for their mobile game, "Game Dev Story." The game allows players to manage a game development company in Wanuma City and make strategic decisions to grow their business and create successful games. The city itself is depicted as a bustling hub for the game industry, with various types of game companies, talent agencies, and other relevant establishments. It serves as the setting for the player's company and offers opportunities for networking, collaborations, and competition with other game developers in the game.