OpenJazz is a free, open-source version of the classic Jazz Jackrabbit™ games. OpenJazz can be compiled on a wide range of operating systems, including Windows 98/Me/XP and Linux. To play, you will need the files from one of the original games.
Publisher’s description
What is OpenJazz?
OpenJazz is an open-source pc game program for Windows from AJ Thomson. It is written in C.
Installation and requirements
Official installers exist for 64-bit as Portable. It runs without installation (portable).
Updates and version history
The current version is 20260301, released on March 1, 2026. 3 versions are listed since September 19, 2024, each with links to its own installer files. That is about 2.1 releases a year.
Popularity and file types
The source code on GitHub (AlisterT/openjazz) has 412 stars. Similar programs include RetroArch, OpenTTD and Steam.
Project description on GitHub: “OpenJazz”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
In short: OpenJazz is an open-source pc game tool for 64-bit PCs.
Is OpenJazz 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:
554761696456A20C1BFC5EBE43BAD8537A439D5A00150E4D0BCF9EBCBA64A2F5· 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 3 versions ›3 versions over 1 year · about 2.1 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 20260301Latest | March 1, 2026 | — | 64-bit ZIP |
| 20260218 | February 18, 2026 | — | 64-bit ZIP |
| 20240919 | September 19, 2024 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id AlisterT.openjazz -eRelated guide: How to use winget: install and update apps
Also for other systems
brew install openjazzInformation
- Publisher
- AJ Thomson
- Category
- PC games
- Licence
- GPL-2.0
- Price
- Free
- Source code
- github.com/AlisterT/openjazz
- Written in
- C
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 20260301
- Released
- March 1, 2026
- Added to the catalogue
- July 9, 2025
- Versions listed
- 3
- Updates / year
- 2.1
- GitHub stars
- 412
- GitHub forks
- 58
- Website
- alister.eu
- winget ID
- AlisterT.openjazz
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is OpenJazz free?
Yes. OpenJazz is open-source software under the GPL-2.0 licence.
Is OpenJazz 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 OpenJazz 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.
Does OpenJazz 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 OpenJazz?
The versions page lists all 3 versions with links to their official installer files, back to September 19, 2024.
Can I use OpenJazz without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to OpenJazz?
RetroArch, OpenTTD, Steam, Celestia and PPSSPP. The alternatives page compares them.
