Comet

Comet 0.3.2

Open Source implementation of GOG Galaxy Communication Service for SDK bundled with GOG games.

Download for Windows

About Comet

Open Source implementation of GOG Galaxy Communication Service for SDK bundled with GOG games.

What's new in 0.3.2

This release comes with a small improvement regarding initialization of named pipes for overlay.
Before it used to have a delay up to 2 seconds, now it's instant.
What's Changed
- fix: create named pipes immediately instead of polling for pipe name by @imLinguin in 7f71ff5
- chore: improve code readability by @imLinguin in 1d5290a
- Add Heretic + Hexen to Game-Compatibility.md by @nemesisx00 in #74
- docs: add flashback to game-compatibility.md by @mrcaique in #76
- Add Streets of Rage 4 to Game-Compatibility.md by @nemesisx00 in #77
- Update Game-Compatibility.md by @AaronEldreth in #78
- Added "X4: Foundations" to the game compatibility list. by @gabriel-eladi in #81
- Add Indiana Jones and The Great Circle to Game Compatability List by @TheManInBlack-Gaming in #84
New Contributors
- @AaronEldreth made their first contribution in #78
- @TheManInBlack-Gaming made their first contribution in #84
Full Changelog: v0.3.1...v0.3.2

Full release notes »

Technical details

PublisherPaweł Lidwin
Version0.3.2
Release date2026-01-04
LicenseApache-2.0
Installer typeportable
Architecturex64, arm64
Package IDimLinguin.comet
DependenciesMicrosoft.VCRedist.2015+.x64

Install Comet from the command line

Install with Windows Package Manager
winget install --id=imLinguin.comet -e
Update to the latest version
winget upgrade --id=imLinguin.comet -e
Uninstall
winget uninstall --id=imLinguin.comet -e

Comet adds this command to the command line: comet.

gaminggog-galaxysdk

Comet version history

0.3.1 Jul 21, 2025

What's Changed
- Added "Cyberpunk 2077" to Game-Compatibility.md by @gabriel-eladi in #61
- docs: added DOOM (2016) compatibility report by @kevin-wijnen in #63
- Update Game-Compatibility.md by @nemesisx00 in #65
- Game compatibility update for Homeworld: Deserts of Kharak by @hfc2x in #69
- Adding DUSK to game compatibility by @hfc2x in #67
- Fixed a problem with achievements in dev mode
- Lowered notification pusher ping frequency to 30 seconds
New Contributors
- @gabriel-eladi made their first contribution in #61
- @nemesisx00 made their first contribution in #65
- @hfc2x made their first contribution in #69

0.3.0 Mar 19, 2025

Frequently asked questions

Is Comet free?

Yes. Comet is free and open-source software released under the Apache-2.0 license.

What is the latest version of Comet?

The latest version is 0.3.2, released on Jan 4, 2026.

Is it safe to download Comet?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 181f9a3644eabbdf396037de135583e92cf4a08029be30c9ee4e2479ff11ae8c.

Which Windows versions does Comet support?

Comet runs on Windows and is available for 64-bit (x64), ARM64 systems.

How do I uninstall Comet?

Open Settings › Apps › Installed apps, find Comet and select Uninstall. From the command line, run winget uninstall --id=imLinguin.comet -e.

Is there a portable version of Comet?

Yes. Comet is available as a portable program (comet-x86_64-pc-windows-msvc.exe, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.

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