Sega Interactive R&D3, established as a division of Sega Interactive, emerged from the legacy of Sega R&D1, with its first public mention in November 2015. This division was a spiritual successor to Sega AM3, inheriting franchises like World Club Champion Football while introducing innovative titles such as the rhythm game series maimai and Wonderland Wars. R&D3 is particularly recognized for its contributions to the rhythm game genre, with notable releases including Maimai DX, Maimai Milk, and Chunithm Star Plus, which have garnered a dedicated following. Key personnel include Takenobu Mitsuyoshi, a prominent figure in the sound department, whose influence has shaped the auditory experience of R&D3's games. The studio has significantly impacted the gaming industry by pushing the boundaries of rhythm gameplay and integrating advanced sound design, setting new standards for arcade experiences. Focusing primarily on rhythm games and arcade experiences, R&D3 has been instrumental in evolving the genre. The studio has received various accolades for its innovative designs and engaging gameplay, solidifying its reputation within the gaming community. In 2020, R&D3 was merged into Sega Games, becoming part of the 5th Development Division, further enhancing its capabilities and reach in the gaming landscape.

Sega Interactive R&D3, established as a division of Sega Interactive, emerged from the legacy of Sega R&D1, with its first public mention in November 2015. This division was a spiritual successor to Sega AM3, inheriting franchises like World Club Champion Football while introducing innovative titles such as the rhythm game series maimai and Wonderland Wars. R&D3 is particularly recognized for its contributions to the rhythm game genre, with notable releases including Maimai DX, Maimai Milk, and Chunithm Star Plus, which have garnered a dedicated following. Key personnel include Takenobu Mitsuyoshi, a prominent figure in the sound department, whose influence has shaped the auditory experience of R&D3's games. The studio has significantly impacted the gaming industry by pushing the boundaries of rhythm gameplay and integrating advanced sound design, setting new standards for arcade experiences. Focusing primarily on rhythm games and arcade experiences, R&D3 has been instrumental in evolving the genre. The studio has received various accolades for its innovative designs and engaging gameplay, solidifying its reputation within the gaming community. In 2020, R&D3 was merged into Sega Games, becoming part of the 5th Development Division, further enhancing its capabilities and reach in the gaming landscape.