Master Detective Archives: RAIN CODE

Spike Chunsoft has spent more than a decade teaching players to love being lied to. The Danganronpa series made accusation a sport: courtroom debates where you shoot holes in testimony, and killers who turn out to be the characters you liked best. Master Detective Archives: RAIN CODE comes from the same people. Kazutaka Kodaka wrote it, Masafumi Takada composed the score, and Rui Komatsuzaki designed the characters. It is a fresh setting, not a sequel, but it plays like the studio’s attempt to prove the formula still works.

The setup is strong. You play Yuma Kokohead, a detective-in-training with amnesia. He is bound to Shinigami, a death spirit who is playful, bloodthirsty and very funny. She gives him supernatural investigative power, and the pact has a price. The story takes place in Kanai Ward, a neon-lit city where it never stops raining. A single corporation controls the police, the media and the truth. Murders there don’t get solved; they get buried. Yuma works alongside the World Detective Organization’s Master Detectives, investigators with supernatural gifts called “Forensic Forte.” Their job is to dig those cases back up.

In the market, RAIN CODE sits between visual novels and light action-adventure games. It has more player agency than a straight visual novel like Ace Attorney, but much less freedom than a real investigation sim like The Case of the Golden Idol. The game’s big idea is the Mystery Labyrinth, a dungeon generated by the case itself. It turns deduction into a physical place you walk through, and that one choice defines both its best and worst moments.

The game first launched on Nintendo Switch, and its reception was split: praise for the writing, complaints about the technical side. The Steam release, RAIN CODE Plus, is the version that matters now. It is built for steadier performance and includes all the post-launch DLC, which adds side stories about the other Master Detectives. At $29.99 on Steam and Nintendo platforms, it is a dense package for the price.

• Two-Phase Case Structure: Each chapter starts with a real-world investigation, where you search crime scenes, question suspects and collect evidence. It then moves into the Mystery Labyrinth, where you use that evidence to reconstruct the crime.
• The Mystery Labyrinth: A surreal dungeon that the case itself creates. Shinigami takes physical form there, and each of the murderer’s lies appears as an obstacle you have to take apart.
• Reasoning Death Matches: Timed verbal duels. You dodge the other side’s arguments and counter them with “Solution Keys.” These are the game’s version of Danganronpa’s Nonstop Debates.
• Master Detective Roster and Forensic Fortes: Before each case, you choose which specialist to bring along. Each one’s supernatural ability opens a different line of investigation.
• Kanai Ward Hub and Side Quests: Between cases you can explore the city, take optional jobs and unlock detective skills that make the Labyrinth sections easier.
• RAIN CODE Plus (Steam): Steadier performance, plus all post-launch DLC, including extra stories for the other Master Detectives.

The Gameplay Loop: Two Games Stapled Together

RAIN CODE’s structure is simple to describe and uneven in practice. The investigation phase is the familiar part: you walk a crime scene, examine things, talk to people, and “Clues” pile up in your inventory. Here the game works mostly as a visual novel with a map. The writing is sharp, the cast is lively, and Shinigami’s running commentary keeps the long dialogue scenes from dragging. When she isn’t mocking Yuma, she is threatening to eat someone.

The problem is how you move around. Kanai Ward is presented as an explorable city, but most of it is corridors with a neon coat of paint. You walk from one objective marker to the next, sit through a scene, and walk back. That backtracking is the design’s most obvious flaw, and the criticism is fair. The investigation phase has lots of scenes but little actual play. You are collecting evidence, not deducing anything. The real thinking is saved for the second half.

The Mystery Labyrinth: The Big Swing

The Labyrinth is where RAIN CODE earns its reputation. It is a nightmare version of the case: rooms that are physical metaphors for the lies someone told, corridors that bend around contradictions, and “puzzle gates” that only open when you answer a question about the murder correctly. Watching a lie turn into an actual monster, then taking that monster apart with the right piece of evidence, is clever game design. It gives abstract logic a place and a pace, and the game’s best moments come from that.

It also shows the formula’s age. Danganronpa’s trials worked because they felt like a trap closing on you. The Labyrinth, by contrast, often tells you the answer before it asks the question. The multiple-choice gates rarely offer more than one believable option. And there are almost no real consequences for a wrong guess, so the “Death” in “Reasoning Death Match” is mostly a bluff.

Reasoning Death Matches: Style Over Stakes

The Reasoning Death Matches are the most eye-catching part of the Labyrinth. A suspect’s arguments fly at you as literal blades of text. You dodge, pick the right Solution Key, and slash through the contradiction. The first few are exciting. By the midpoint they are repetitive, because the action layer adds very little difficulty to what is really a logic multiple-choice question. The same goes for the minigames scattered through the Labyrinth: they are fun once and filler the third time. The game is so afraid of blocking you that it rarely lets you feel smart.

Writing and Cases: Why You Forgive Everything Else

What rescues the game is the writing. Kodaka’s cases are baroque, excessive and very well built. Locked rooms sit inside other locked rooms. Motives turn upside down twice. The reveals reach back hours to reframe something you didn’t think mattered. Supernatural rules are introduced early and followed faithfully, so even the wildest solutions play fair.

The overall story builds deliberately, and its late turns hit hard enough to make up for the slow middle. The caveat: you have to put up with a lot of padding to get there. The game would be tighter with fewer walking scenes and half as many minigames. It would not be worse for it.

Progression: Skills You’ll Barely Notice

The detective skill tree, fed by side quests and exploration, is meant to give the time between cases a purpose. As designed, the skills only make the Labyrinth’s already-easy challenges easier: more stamina here, more room for mistakes there. The side quests have some good character moments and some real world-building about Kanai Ward’s corporate control. As mechanics, though, they are optional in the literal sense. You can skip nearly all of them and lose nothing but flavor.

Onboarding and Flow

The game onboards patiently, maybe too patiently. The first chapter spends a long time introducing systems that are simple to begin with. Once the structure clicks, the game settles into a steady rhythm: investigate, Labyrinth, reveal, epilogue, hub. That predictability suits long sessions. It also means the surprises come only from the story, never from the gameplay.

The art direction is excellent. Kanai Ward looks like cyberpunk seen through a lens of melancholy: wet asphalt, magenta signs reflected in puddles, umbrellas crowding the streets. Komatsuzaki’s character designs make the jump to full 3D better than Danganronpa’s paper-cutout style ever managed. Shinigami in particular switches between a cute ghost and a grotesque grinning goddess, and both forms have strong personality. The Labyrinth’s visual design is the highlight. Each case gets its own twisted, theatrical look, much like a stage set built from someone’s guilty conscience.

Takada’s soundtrack is a clear asset, moving between jazz noir, electronic tension and grand operatic moments in the reveals. It does a lot of work to keep the long dialogue scenes moving.

The UI is stylish and readable. The clue menus and dialogue logs are clear, and the evidence screens are easy to follow even deep into a case.

Performance is where the design and the hardware diverge. The original Switch version is a real technical weak point: a 3D city of this density is a heavy load for the hardware, and the frame rate visibly suffers in the busier hubs. For a game this focused on atmosphere, that is hard to ignore. RAIN CODE Plus on Steam is built for the stronger hardware, and that is the clearest reason to recommend the PC version.

Nintendo Switch: The original release suits the game’s rhythm well in some ways. A text-heavy mystery with clear chapter breaks feels natural in handheld mode, and reading dialogue on the go is how many people play visual novels. But the frame-rate and performance issues are worst in the busier parts of Kanai Ward, and the Death Matches, which need dodge timing, are the sections most sensitive to that. If a Switch is your only platform, the game is still worth playing, but the technical rough edges come with it.

Steam (RAIN CODE Plus): This is the definitive version. The extra headroom lets the atmosphere land as intended: rain, neon and reflections come across the way the art team designed them. Mouse and keyboard work fine for menus and dialogue. A controller is still the recommended input, though, because the Death Matches and minigames were clearly designed around a gamepad. The biggest difference is value: all post-launch DLC is included, which adds side stories for the other Master Detectives. On Switch those stories cost extra. The game is also a natural fit for the Steam Deck form factor, though compatibility is worth checking before buying.

RAIN CODE’s writing is excellent and its game design is only acceptable. The cases are tightly built, grotesque, funny and moving in turn, with a final stretch that recasts everything before it. The Mystery Labyrinth is a smart, confident attempt to turn a logic puzzle into a place. But the game rarely trusts you. It pads the investigation with walking, turns deduction into multiple-choice questions dressed up as action, and strains on the platform it first launched on.

On Switch, we rate it a good game with serious caveats. RAIN CODE Plus on Steam earns a different recommendation: steadier performance, the full DLC, and an atmosphere free to work as designed. If you have ever finished a Danganronpa trial and immediately wanted the next case, this is worth your time — with patience packed for the middle chapters, because the ending is worth the wait.