Ongakukan emerged in the gaming scene with "Train Simulator: JR Higashi-Nihon Yamanote-sen Uchi-mawari" in 2010. The game was well-received for its realistic simulation of Japan's iconic Yamanote Line, setting a high standard for train simulation games. The company's dedication to authenticity and detail is evident in titles such as "Train Simulator Plus: Kyoto-shiei Chikatetsu Karasuma-sen" and "Train Simulator: Odakyu Dentetsu Odawara-sen 5000-gata."

Specializing in simulation games, Ongakukan has developed titles primarily for PC platforms. Their work on the "Train Simulator" series showcased unique features such as detailed train models and accurate route recreations, influencing the train simulation genre and attracting a dedicated fanbase.

The publisher has achieved significant milestones, including the launch of multiple successful expansions and collaborations with railway companies to ensure authenticity. Ongakukan's portfolio reflects a commitment to delivering quality gaming experiences, resonating with players and critics alike, earning recognition for high ratings and niche awards in simulation gaming.

Ongakukan continues to shape the simulation genre with upcoming projects like "Train Simulator: Tokaido-honsen 211-kei," demonstrating their ongoing influence in the industry.