a3rig builds and launches a complete local Arma 3 multiplayer test environment from
inside any HEMTT project: it runs the dev build, starts two game clients on separate
Arma profiles and a dedicated server, then tails the server log.
It reproduces HEMTT's mod resolution exactly, so every process loads the same mods in
the same order, and it checks the server config up front for the settings that silently
break a local rig.
Publisher’s description
What is a3rig?
a3rig by DiGii is open-source Windows software in the launchers & mods category. It is written in Python.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. It runs without installation (portable).
Updates and version history
The current version is 0.2.0, released on August 13, 2026. The version history goes back to August 5, 2026: 2 releases, all linked to the official files.
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: a3rig is an open-source launchers & mod tool for 64-bit PCs.
Is a3rig 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:
5908AEABB7726EBF3B0214ECF8489C3EAF8091651BE4ACF7CFDE674C2B65ADC4· 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 |
|---|---|---|---|
| 0.2.0Latest | August 13, 2026 | — | 64-bit ZIP |
| 0.1.0 | August 5, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id DiGii.A3Rig -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- DiGii
- Category
- Launchers & mods
- Licence
- MIT
- Price
- Free
- Source code
- github.com/AtrixZockt/DiGii-A3Rig
- Written in
- Python
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 0.2.0
- Released
- August 13, 2026
- Added to the catalogue
- August 13, 2026
- Versions listed
- 2
- Website
- github.com
- winget ID
- DiGii.A3Rig
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is a3rig free?
Yes. a3rig is open-source software under the MIT licence.
Is a3rig 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 a3rig 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 a3rig 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 a3rig?
The versions page lists all 2 versions with links to their official installer files, back to August 5, 2026.
Can I use a3rig without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to a3rig?
Vortex, LOOT, Mod Organizer, SteamCleaner and Achievement Watcher. The alternatives page compares them.
