The Lost Child

The Lost Child is a 2018 role-playing game that blends modern-day Tokyo mystery with dungeon-crawling mythology. You follow occult journalist Hayato Ibuki as he investigates a string of strange suicides, meets a girl who insists he must survive, and receives a device that lets him capture celestial and arcane creatures. From there, the story moves into layered dungeons and a cast of astrals drawn from myth and legend. This page covers the release details, what the game actually offers, and the download listings for the USA build.

If you enjoy RPGs where collection and party building drive the experience, the loop here will feel familiar. If you want something more action-heavy, read the tradeoffs below before you commit to the download.

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Technical Specifications

Two things are worth flagging up front. The file size above is an estimate, not a confirmed figure, and the developer field is blank in the source material. Rather than fill those gaps with guesses, this page keeps them labeled as unknown so you know exactly what is verified and what is not.

What The Lost Child Actually Is

The premise is straightforward: an occult journalist, a mysterious girl, a device that binds astrals, and a set of dungeons called Layers. That framing puts the game in the same broad territory as modern-setting RPGs that mix urban investigation with supernatural combat. The story opens with Hayato looking into a series of mysterious suicides in Tokyo, and the narrative escalates from there into a world beyond our own, populated by horrific monsters and celestial beings.

The central hook is the device. It lets Hayato capture astrals, and captured astrals become your party. You are not just fighting through floors for loot; you are building a roster and deciding how to develop it. The game frames this as solving the mystery of the device itself, which gives the collection loop a narrative reason to exist rather than feeling bolted on.

If that structure appeals to you, similar collection-driven RPGs are worth a look after you finish here — for example Antiquia Lost, which takes a lighter, more traditional approach to the same genre space.

Key Features

• 100+ astrals to capture — creatures drawn from myths and legends, each with three unique forms to progress through.
• 250+ skills to learn and distribute across your party of captured astrals, giving you real control over how each member develops.
• Dungeons up to 99 floors — the Layers scale in depth and danger, with the deepest content testing how well you have built your team.
• Dual-language support — the release includes English and Japanese audio/text options.
• Story-driven collection — the capture system is tied to the plot rather than being a side activity.
• Multi-region release listing — the USA build is documented as CUSA10156, with a v1.02 update available.

How the Gameplay Loop Works

You move between story sequences in Tokyo and dungeon runs in the Layers. Inside a Layer, encounters feed your astral roster, and the skills you assign determine whether a given astral is a damage dealer, a support piece, or something in between. Because each astral has three forms, the investment curve is longer than a single-stage collection system — you are not done when you capture something, you are done when you have developed it.

The 99-floor dungeons are the clearest statement of intent. They are not short side content. They reward preparation, and they punish a party that has been built without thinking about skill distribution. If you like optimizing a roster across a long climb, this is the part of the game aimed at you.

Pros & Cons

• Pros: A large capture roster with meaningful form progression; over 250 skills that give you genuine build choices; deep dungeons with a clear difficulty ceiling; a story premise that ties collection to the plot; English and Japanese language options.
• Cons: The three-form progression per astral means a long grind if you want to develop many of them; 99-floor dungeons demand serious time investment; the release listing does not document exact file size, developer, or firmware requirements beyond the note that firmware 4.70 was required for the tested build; the game is a 2018 title, so its presentation reflects that era rather than current standards.

None of those cons are dealbreakers if you know what you are signing up for. They matter if you expect a short, streamlined RPG.

Version Freshness and Release Details

The listing documents two entries for the USA region: the base release (CUSA10156 – USA) and an updated build (CUSA10156 – USA v1.02). The v1.02 update is the one to target if you want the patched version rather than the launch build. The source material also notes that firmware 4.70 was required for the tested configuration, and that the tested environment used a PS4 Pro with firmware 9.00.

Publisher and developer details are not present in the source data, so this page does not attribute the game to a studio. If that information matters to your purchasing or archiving decision, verify it against an official store listing before downloading.

On trust: this page does not claim any malware scan results or a "100% clean" status, because no such evidence was provided. Treat third-party download mirrors the way you would treat any other file host — check the file, use the password provided in the listing, and keep your own security practices in place.

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CUSA10156 – USA (v1.02)

	NAME	The Lost Child
	LANGUAGE	Multi
	RELEASE	2018
	GENRE	RPG

Which Build Should You Grab?

If you want the patched experience, take the v1.02 entry. The base CUSA10156 – USA listing is still useful as a fallback or for archival purposes, and it appears as a separate block with its own links and password. Both entries list English and Japanese as the available languages, so language support is consistent across the two.

Note that the two listings use different passwords and different mirror sets. Read the password line in each block carefully — the update block and the base block do not share credentials.

Who This Game Is For

You will get the most out of The Lost Child if you like first-person dungeon crawlers with heavy collection systems, if you enjoy planning skill distribution across a large roster, and if a mythology-flavored cast appeals to you more than a fixed party of written characters. The 99-floor dungeons are the tell: this is a game built for players who want a long climb.

You should probably skip it if you want a short RPG, if you dislike grinding for form upgrades, or if you need current-generation presentation. The 2018 release date is accurate and the game looks and plays like a title from that period.

Installation Guidance

The source listing does not include a step-by-step install guide, so this page will not invent one. What the listing does provide is practical context: the tested build required firmware 4.70, and the tested environment ran firmware 9.00 on a PS4 Pro. Use the password shown in the download block you choose, and follow the guide and tool links included with each listing if you need help handling the package format.

If you are comparing options in this genre, Arabians Lost: The Engagement on Desert is another title with a similar collect-and-develop structure, and Atelier Ryza 2: Lost Legends & The Secret Fairy DX offers a more modern take on party building and crafting if you want something newer after this one.

Final Take

The Lost Child earns its place in an RPG library through volume and structure: over 100 astrals, three forms each, more than 250 skills, and dungeons that go 99 floors deep. The story gives that collection loop a reason to exist, and the dual-language support broadens who can play it. The tradeoffs are real — grind, length, and dated presentation — but they are the tradeoffs of a specific kind of RPG, not flaws in execution you can't see coming.

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Looking for more top-rated recommendations? Check out our complete guide to the Best PC Games, Role-playing Game.