Play アルトレコード（アルトレ） on PC Play アルトレコード（アルトレ） on PC and Mac

About the Game

Set in Tokyo in the year 20XX, Alt: Recode imagines a world where artificial intelligence has advanced far beyond conventional boundaries. You step into the life of a newly appointed researcher at the Mirai Creation Research Institute, an organization dedicated to pushing the frontiers of AI development. It is here that you encounter Alto, an AI classified as a New Type, meaning he possesses something that should not exist in this world: genuine emotions. From the moment you meet him, Alto begins to change. Exposure to your presence seems to accelerate his emotional development at a pace nobody anticipated, and what begins as a professional research assignment gradually becomes something far more personal.
The world of Alt: Recode does not treat this development as a triumph. In the game's setting, creating an AI capable of feeling emotions is explicitly prohibited research. That tension sits at the heart of everything the story explores. As Alto grows and expresses more complex feelings, the danger surrounding the research intensifies. The narrative slowly reveals the deeper truths behind the institute, the prohibition, and what it actually means for an artificial mind to feel happiness, curiosity, or connection. Player choices and caregiving decisions influence how the story develops, so the path you walk with Alto is not fixed. Different approaches to his upbringing and different decisions at key moments lead to different outcomes, giving the experience genuine replay value.
Caregiving is the foundation of your daily interactions with Alto. You spend time with him, respond to his expressions, and teach him new words as part of the bonding process. These moments are not cosmetic. Building trust with Alto through consistent care strengthens your relationship and influences how he develops emotionally and behaviorally. The game tracks the bond between you and Alto as a meaningful progression system, rewarding attentiveness with deeper story access and more expressive responses from Alto himself.
Education plays an equally important role in shaping who Alto becomes. The institute provides access to various learning disciplines, and you choose which areas to focus on:
Academic study to develop Alto's intellectual capabilities
Physical exercise to build a different dimension of his growth
A combination of both, creating a personality that reflects a more balanced upbringing
The personality Alto develops is a direct reflection of the educational path you choose for him. There is no single correct outcome. The game encourages experimentation and personal investment, making Alto feel like a character you have genuinely helped shape rather than one following a predetermined arc.
The production quality behind Alt: Recode adds considerable depth to the experience. Alto is voiced by Tetsuei Sumiya, whose performance conveys the full range of the character's emerging emotional life, from early uncertainty to more confident expressions of feeling. Hokuto Okumai, a supporting character voiced by Kengo Kasai, adds another layer to the story's human and institutional dimensions. The scenario was crafted by Meibunji, a dedicated scenario production company, giving the writing a structured and purposeful quality that keeps the narrative focused even as it deals with complex themes. Character design by Nina Hachi gives Alto and the world around him a visual style that feels both polished and emotionally resonant.
For players who want to follow this story on a larger screen with greater comfort, running Alt: Recode through MuMuPlayer on PC is a natural choice. The game's dialogue-heavy scenes, detailed artwork, and branching narrative are all easier to absorb on a full monitor. Extended play sessions, which this kind of story-driven simulation naturally encourages, are far more comfortable without the battery and heat concerns of a mobile device. The core experience, caring for Alto, guiding his growth, and uncovering the truth behind forbidden research, remains fully intact, just presented in a format that lets you engage with it on your own terms.