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Karoshi Corporation

Spanish MSX game development studio known for its homebrew and retro-style releases.

Last updated September 28, 2026

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Overview

Karoshi Corporation is a Spanish game development studio that specializes in creating software for the MSX standard, a family of home computers popular in Europe, Japan, and Latin America during the 1980s and 1990s. The studio is recognized within the MSX community as a developer of new games for the platform, contributing to the ongoing homebrew and retro-computing scene. Its name, derived from the Japanese term for death by overwork, reflects a darkly humorous branding common in independent game development circles. While the studio's exact founding date and corporate structure are not widely documented, its online presence at karoshi.auic.es indicates a base in Spain and a focus on the MSX market. Karoshi Corporation has released titles that appeal to enthusiasts of classic 8-bit computing, often distributed through digital channels and specialized retro-gaming events. The studio's work is part of a broader revival of interest in MSX hardware, supported by emulators, flash cartridges, and community-driven publishing. As a small independent developer, Karoshi Corporation operates in a niche segment of the video game industry, serving a dedicated audience of MSX users and collectors. Its games typically feature pixel art, chiptune music, and gameplay inspired by the 8-bit era. The studio's contributions help sustain the MSX ecosystem, which lacks the commercial backing of mainstream consoles but thrives on passionate hobbyist development. Karoshi Corporation's identity is closely tied to the MSX platform, and it is often mentioned alongside other active MSX developers in Spain and across Europe. The company's website serves as a primary point of contact and distribution for its releases, though detailed corporate information remains scarce. Its continued activity underscores the vitality of retro game development as both a creative outlet and a preservation effort.

History

Karoshi Corporation is a Spanish game development studio dedicated to the MSX platform. The MSX standard, originally created by Microsoft and ASCII Corporation in the early 1980s, became a dominant home computer format in Japan, Europe, and parts of Latin America. In Spain, the MSX enjoyed a significant user base, and a vibrant community of developers and enthusiasts has kept the platform alive through homebrew games and hardware projects. Karoshi Corporation emerged from this community, focusing on creating new software for MSX machines. The studio's name, referencing the Japanese concept of karoshi (death from overwork), suggests a playful or ironic attitude typical of independent developers. While precise founding details are not publicly documented, the studio has been active in the MSX scene, releasing games that cater to fans of 8-bit gaming. The studio's online home at karoshi.auic.es indicates a connection to Spain, and its output is likely distributed digitally and at retro-computing gatherings. Karoshi Corporation's games often feature classic genres such as platformers, shoot-'em-ups, and puzzle games, designed to run on MSX2 and later models. The developer has gained recognition among MSX enthusiasts for maintaining high standards of pixel art and gameplay. As part of the broader retro game development movement, Karoshi Corporation contributes to the preservation and evolution of the MSX platform. Its work is supported by the availability of emulators, SD-card interfaces, and community forums that connect developers with players. The studio remains a small, independent entity, with no known corporate parent or public listing. In recent years, the MSX homebrew scene has seen renewed interest, with new games released on cartridge and digital formats. Karoshi Corporation continues to be listed among active MSX developers, though detailed information about its releases and team members is limited. The studio's website serves as a primary source for its projects and contact information.

Products and positioning

Niche independent developer focused on the MSX retro-computing platform.

Product categories. MSX games · Retro-style video games

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