The game sold more than 85,539 units in its first week in Japan.
On May 1, 2016, the game was removed from the North American and European eShops. Some music tracks were removed or replaced for the same reasons. The English versions of the game retain the Japanese voices, like Otomedius Excellent, though the vocals for the opening theme music were removed for legal reasons. On September 22, 2012, Katsuhiro Harada, producer of the Tekken series, had revealed on Twitter: "I proposed localization of Project X Zone." He added that the company had "not decided yet, but it will be realized if I continue proposing." Namco Bandai Games announced on Januthat the game would be officially released in North America, Europe and Australasia during summer 2013. The opening movie was created by the new animation studio Trigger, which was founded by former Gainax employees Hiroyuki Imaishi and others. The game features two theme songs, with the opening song titled "Wing Wanderer" and the ending titled "GALAXY", which were both performed by Yoko Takahashi. Notable attacks used by the characters had to be done in 2D space in order to preserve its source material origin. The initial creation of the characters were done in 3D character models before they were converted to be SD pixel art. The game was first revealed in a teaser by Bandai Namco on the official website until it was revealed in the April 2012 issue of Famitsu. Namco Bandai came up with the idea of a "dream crossover" and brought on Capcom and Sega. Genghis Bahn III from Fighting Vipers.Devilotte de DeathSatan IX from Cyberbots.Tron Bonne and Servbots from Mega Man Legends.Sänger Zonvolt from Super Robot Wars: Original Generations.Zephyr and Leanne from Resonance of Fate.Toma and Cyrille from Shining Force EXA.Akira Yuki and Pai Chan from Virtua Fighter.Gemini Sunrise and Erica Fontaine from Sakura Wars.
Ichirō Ōgami and Sakura Shingūji from Sakura Wars.Kurt Irving and Riela Marceris from Valkyria Chronicles III.Frank West from Dead Rising and Hsien-Ko from Darkstalkers.Chun-Li from Street Fighter and Morrigan Aensland and Darkstalkers.Ryu and Ken Masters from Street Fighter.Dante from Devil May Cry and Demitri Maximoff from Darkstalkers.Chris Redfield and Jill Valentine from Resident Evil.