Emulates Game Boy, Game Boy Color, Game Boy Advance, NES, WonderSwan, and Sega 8-bit systems.
Publisher’s description
What is Zeff Boy?
Zeff Boy by Zeffuro is open-source Windows software in the emulators category. It is written in Rust.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 0.4.2, released on October 1, 2026. The version history goes back to September 21, 2026: 2 releases, all linked to the official files. The last update is less than a month old.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: Zeff Boy is an open-source emulator tool for 64-bit PCs. Administrators can deploy it unattended.
Is Zeff Boy safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
AEE107DB6B49ABA8C76A65D79C86A1BFBDC0522AEACA3B0A4B5067EED08232E5· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.4.2Latest | October 1, 2026 | — | 64-bit EXE (Inno Setup) |
| 0.2.0 | September 21, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id Zeffuro.ZeffBoy -ezeff-boy-v0.4.2-x86_64-pc-windows-msvc-setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Zeffuro
- Category
- Emulators
- Licence
- MIT OR Apache-2.0
- Price
- Free
- Source code
- github.com/Zeffuro/zeff-boy
- Written in
- Rust
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 0.4.2
- Released
- October 1, 2026
- Added to the catalogue
- September 21, 2026
- Versions listed
- 2
- Website
- github.com
- winget ID
- Zeffuro.ZeffBoy
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Zeff Boy free?
Yes. Zeff Boy is open-source software under the MIT OR Apache-2.0 licence.
Is Zeff Boy safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Zeff Boy with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Zeff Boy be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Zeff Boy run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Zeff Boy?
The versions page lists all 2 versions with links to their official installer files, back to September 21, 2026.
Can I use Zeff Boy without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Zeff Boy?
PCSX2, BizHawk, SameBoy, bsnes and Genymotion. The alternatives page compares them.
