Press release:
Pocketpair Publishing, the publishing label of Pocketpair, Inc. (Headquarters: Shinagawa, Tokyo; CEO: Takuro Mizobe), is pleased to announce that the Puzzle Action RPG CASSETTE BOY, developed by Tokyo-based Wonderland Kazakiri inc. is available on Steam today. To celebrate the launch, we are holding a 10% OFF launch sale.
CASSETTE BOY has already garnered significant attention in the Japanese indie game scene. In addition to being nominated for the Visual Excellence Award and winning the Grand Prize at the BitSummit Awards 2024, it has been featured in the “Selected Indie 80” at Tokyo Game Show 2024.
CASSETTE BOY is a puzzle-action RPG inspired by quantum mechanics, where you explore a world where “existence ceases when not observed.”
The game is packed with side content to discover, including mini-games playable on in-game consoles and procedurally generated dungeons found in specific locations. Beyond the main story, players can enjoy a deep, multilayered experience that rewards exploration.
・ CASSETTE BOY Game Overview
Title: CASSETTE BOY
Genre: Puzzle Action RPG
Release Date: January 15, 2026
Platforms*: PC – Steam (Windows, macOS)
Steam Store Page: https://store.steampowered.com/app/2334330/CASSETTE_BOY
Developer: Wonderland Kazakiri inc.
Publisher: Pocketpair Publishing
*Nintendo Switch, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S versions to be released by Forever Entertainment
・A Unique Puzzle-Action RPG Created by a Solo Developer
CASSETTE BOY is the latest title from Wonderland Kazakiri inc., a small studio based in Akihabara, Tokyo. While the team typically works on web design and system development, it also creates indie games on the side. For this project, Mr. Honda handled everything from planning, programming, art and audio, bringing CASSETTE BOY to life as a solo project.
・ 10% OFF Launch Sale now live on Steam!
To celebrate the release, the game is available at a 10% discount for a limited time. Don’t miss this chance to grab your copy!
Steam Store Page Link
https://store.steampowered.com/app/2334330/CASSETTE_BOY
・ New Steam Bundles with Palworld, Öoo, and MotionRec!
Special Steam bundles are now available, featuring CASSETTE BOY alongside these popular titles at an additional 10% discount! Even if you already own some of the games in the collection, you can still use the bundle to purchase the remaining titles at the discounted rate.
Steam Store Page Link
https://store.steampowered.com/bundlelist/2334330/CASSETTE_BOY
Bundle Titles
Palworld
Öoo
MotionRec
・ About CASSETTE BOY
“Do you really believe the moon isn’t there when you’re not looking?”
This famous quote, often attributed to Einstein, questions the strange nature of quantum mechanics. Inspired by this idea, CASSETTE BOY is a puzzle action RPG set in a world where things cease to exist when they can’t be seen.
Explore this mysterious world, confront its bizarre puzzles and creatures, and manipulate “existence” itself to uncover the truth!
◼️Twist and Rotate the World
At first glance, CASSETTE BOY looks like a simple pixel-art game. But there’s much more beneath the surface. What appears to be a 2D world is actually 3D, and what is visible (or not) can be changed by rotating the world.
To solve puzzles, you’ll need to twist and rotate the map to change your perspective. For example, if something is hidden behind a wall and can’t be seen, it simply doesn’t exist. You’ll advance the game by hiding obstacles out of sight or revealing secret paths.
But this is more than just a puzzle game. You’ll also collect weapons, and battle monsters and bosses.
◼️Choose what Exists with the “Schrödinger System”
The state of matter is only defined once you observe it.
In CASSETTE BOY, the “Schrödinger System” ensures that anything you can’t see simply doesn’t exist. That person you just spoke to? The switch you were about to press? If they leave the screen, they’re gone.
Ordinary camera movement becomes the key to solving mind-bending puzzles.
About Pocketpair Publishing
Pocketpair Publishing provides comprehensive support for indie game developers and small studios through funding, development assistance, and publishing.
For inquiries or questions, please contact Pocketpair Publishing via the Pocketpair Publishing inquiry form on the official Pocketpair website.
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Jonas “O.J” Ek
The Gaming Ground
Twitter: @TheGamingGround
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Tags: Action, CASSETTE BOY, Forever Entertainment, Indie games, PC games, Pocketpair Publishing, Puzzle, RPG, Steam