MAGES. Inc. (formerly 5pb. Games) is a Japanese developer and publisher recognized for its work on the Science Adventure series, including Steins;Gate. The company also developed the Phantom Breaker fighting game franchise, including Phantom Breaker: Battle Grounds and Phantom Breaker [Limited Edition]. Additionally, they have published shoot 'em ups like Bullet Soul: Infinite Burst and titles based on The Quintessential Quintuplets franchise.
The developer's rise to prominence is deeply tied to the Xbox 360 era, where several of its key titles found their initial audience. The release of
Steins;Gate (2009) and its sought-after
Steins;Gate [Limited Edition] (2009) established a benchmark for narrative-driven visual novels, utilizing intricate time-travel mechanics and phone-trigger systems. This success allowed the company to diversify into other genres, notably fighting games and shoot 'em ups.
In 2011, the company expanded its portfolio with
Phantom Breaker (2011) and
Phantom Breaker [Limited Edition] (2011), introducing a competitive 2D fighting system that featured guest characters from their visual novel properties. This universe expanded further with the cooperative beat-'em-up spin-off
Phantom Breaker: Battle Grounds [Limited Edition] (2014), which offered stylized pixel art and RPG-like progression. Concurrently, the studio catered to arcade enthusiasts by publishing
Bullet Soul: Infinite Burst (2014) and its
Bullet Soul: Infinite Burst [Limited Edition] (2014), which refined the bullet-hell mechanics of the original release with rebalanced modes. The company also adapted popular anime properties, developing visual novel adaptations within
The Quintessential Quintuplets franchise that focused on multiple-choice branching narratives.
5pb. Inc.
AG-ONE Co, Ltd.