Game Dev Story is a mobile simulation game developed by Kairosoft that allows players to manage their own video game development studio. The game combines elements of strategy, simulation and role-playing games to create a unique and engaging experience for players. At the start of the game, players begin with a small studio and a limited budget. The goal is to create successful video games, earn profits, and expand the studio. The game offers a lot of freedom in terms of game development, allowing players to choose their game genre, platform and development team.Game Dev Story is played in several phases. The first stage is the planning stage, where players choose the game genre and platform. The game offers a variety of genres, including action, adventure, simulation, and RPG, to name a few. Likewise, the game offers several platforms, such as PC, Gamebox, and the fictional Nuu. once the player chooses a genre and platform, they enter the development phase. During this phase, players assigned staff to various tasks such as graphics, programming, sound, and scene writing. Staff members have different skill levels, depending on the player's choice of the best combination of staff members for each task. The player must also manage staff fatigue levels and motivation levels, which can affect the quality and development time of the game.

After the development phase, the game enters the debugging phase. During this phase, the player can catch and fix any bugs in the game, which may affect the game's score and sales. Players can also allocate additional funds to improve the quality of the game. Once the game is completed, the player can release the game and observe its performance. The game will receive a score based on its quality, innovation and overall appeal. The game's sales and profits depend on its score, and players can use the profits to improve the studio and develop new games. The game also features several random events that can affect the performance of the studio. These events can be positive or negative, such as gaining a boost in sales due to a successful marketing campaign or losing sales due to the release of a competing studio. Players must be prepared for these events and adjust their strategies accordingly. In addition to developing the game, players must manage the studio's finances, research new game technologies, and hire new staff. The game has a ranking system that shows how the player's studio performs compared to other studios. Players can also participate in game exhibitions to compete with other studios.