About Omni-Games

Omni-Games started as a passion project, born from years of painstakingly populating spreadsheets with retro game data. Frustrated by fragmented, ad-riddled, and often inaccurate information scattered across the web, this site was created to bring clarity, accuracy, and consistency to gaming history.

The process begins with data cleansing—eliminating errors, duplicates, and contradictions by analysing a wide range of sources. From there, rich metadata is layered in, capturing everything from developer/publishers to release variations and physical/digital distribution formats. This isn’t a solo effort—Omni-Games is a collaborative, research-driven initiative, open to contributions from the gaming community.

Today, Omni-Games is a growing reference hub built for collectors, content creators, researchers, preservationists, and retro fans alike. Its interface is designed for both casual gamers discovering classics and die-hard Sega, SNK, or obscure Japanese PC platform veterans. Searching, filtering, and exploring retro game data should be effortless—and fun.

Omni-Games is free to use and will remain open to all. There are no paywalls and no popups. If you register, only the details needed to run your account are stored, and cookies are used to keep you logged in and, where ads are shown, by Google to serve them. See the Privacy Policy for details. I believe the internet isn’t dead—it just needs to be rebuilt by people who care.

Your feedback, testing, and support are appreciated as this project continues to evolve. Thanks for being part of the effort.

Methodology

What Omni-Games is, and isn't

Omni-Games is a metadata catalogue. It records titles, releases, regions, companies, platforms and file checksums. It does not host, distribute or link to ROMs, disc images or any other game files. Checksums and DAT files are published so collectors and archivists can verify dumps they already own against known-good references.

Where the data comes from

File-level data (names, sizes and CRC32/MD5/SHA-1/SHA-256 checksums) is imported from the public DAT files of established preservation groups, including No-Intro, Redump, TOSEC, the Lost Level Archive and MAME, plus fan-translation and ROM hack collections. Title-level data (release dates, regions, developers, publishers, distribution formats and production states such as Released, Re-released and Cancelled) is researched and entered by hand, then linked to the matching files.

How it's checked

Every release is cross-referenced against more than one source before it is linked to a title group, and duplicates and contradictions are resolved during import. Coverage is shown openly rather than hidden: each platform is marked Indexed (every title mapped), Partially Mapped or Stub, and dumps that are known to exist but have not been preserved are tracked on the Undumped ROMs pages.

How often it's updated

The database is updated continuously as new DAT releases are published and research is completed. Recent changes are listed on New title additions and Latest title updates, and development progress is tracked publicly on GitHub.

Who maintains it

Omni-Games is built and maintained by h4o4, with corrections and contributions from the community on r/OmniGamesInfo. Spotted an error? Please get in touch.