Mages is best known for acclaimed Japanese visual novels, particularly Steins;Gate and its successful anime adaptations. The studio has occasionally explored other formats, including a rhythm game released last year, but its reputation has been built on carefully developed narrative adventures and smaller projects connected to anime.
That makes Juggernaut an unexpected new direction. Rather than another visual novel, Mages has announced a first-person shooter that strongly recalls the 1990s era of Quake and Doom—with zombies, rapid combat and a target of eliminating 5,000 enemies.
A retro shooter built with extensive generative AI
The game appeared suddenly through Mages’ social media, promising players the chance to “jump back to the 90s” with something that “looks retro, plays retro, because it is retro.” Its visual presentation combines familiar arena-shooter influences with imagery that has the unmistakable irregularity of AI-generated art.
The scale of the technology used in development is laid out in the disclosure on the game’s Steam page. Mages states that generative AI was used to create 100 percent of the source code and effects, alongside 60 percent of the graphics and 50 percent of the sound.
That disclosure offers a clear explanation for how a studio without an established history in first-person shooters has moved into the genre so quickly. It also places Juggernaut among the more extensive experiments with generative tools in commercial game development.
For more news about changing game technology and the wider arcade scene, explore RETROCADE’s Arcade Blog and browse its selection of arcade machines.
Mixed reaction from the studio’s audience
English-speaking fans reacted negatively to the announcement. Many criticised the game’s appearance, while others were surprised by how heavily generative AI features in its production.
Mages is not the only Japanese developer investigating the technology. A report found that 51 percent of Japanese game studios were experimenting with the technology. Other companies, including Level 5, have openly showcased the ways in which generative assets have been used in their work.
Even so, releasing a game whose code, effects and substantial portions of its audiovisual content were generated with AI remains unusual. The challenge for Juggernaut will be convincing players that its retro-shooter formula offers something beyond the games it visibly evokes.
Juggernaut is currently available to wishlist, but Mages has not announced a release date. Players interested in building a home setup for classic-style shooters can also compare options in the arcade light gun range.
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