Project X Zone is a crossover tactical role-playing video game for the Nintendo 3DS developed by Monolith Soft with assistance from Capcom and Red Entertainment and published by Namco Bandai Games. It is a follow-up to Namco × Capcom and features characters from Namco Bandai, Capcom, and Sega. The game was released on October 11, 2012 in Japan; June 25, 2013 in North America; and July 5, 2013 in Europe. Project X Zone received mixed to positive reviews upon release; praise went towards the game's cast, combat system, and presentation, but criticism was directed at its repetitive gameplay and confusing storyline.

Monolith Software Inc., trading as Monolith Soft, is a Japanese video game development studio originally owned by Namco until being bought out by Nintendo in 2007, best known for the Xenoblade Chronicles series of games. The company was founded in 1999 by Tetsuya Takahashi with the support and cooperation of Masaya Nakamura, the founder of Namco. Their first project was the Xenosaga series, a spiritual successor to the Square-developed Xenogears. Multiple Square staff would join Takahashi at Monolith Soft including Hirohide Sugiura and Yasuyuki Honne.