Onyx

Spec sheet

Purpose

Onyx combines games you already own into one launcher and library.Read 9 Oct 2026 · onyxlauncher.co.uk

Accounts

The site says no account is required to use Onyx.Read 8 Oct 2026 · onyxlauncher.co.uk

Accounts and subscription

The site says no account is required and there is no subscription.Read 9 Oct 2026 · onyxlauncher.co.uk

Artwork services

The README lists IGDB and RAWG for game metadata, and SteamGridDB for artwork; it says users need their own API keys and must follow provider terms and rate limits.Read 8 Oct 2026 · github.com

Community and support

The site links to Discord for chatting with developers and users, Reddit for discussion and updates, and Ko-fi for contributions.Read 9 Oct 2026 · onyxlauncher.co.uk

Cost and license

The project is described as open source with no subscription, and its GitHub README says it is free under GPL-3.0-or-later.Read 8 Oct 2026 · github.com

Credential storage

The README says API credentials are stored in the operating system's secure credential store when available, with electron-store as a fallback.Read 8 Oct 2026 · github.com

Customization

Onyx settings include performance and interface options, while view personalization includes scaling, spacing, and accent colors.Read 9 Oct 2026 · onyxlauncher.co.uk

Launcher integrations

The site names Steam, Epic, GOG, and Xbox among the libraries Onyx can import, with other sources also supported.Read 8 Oct 2026 · onyxlauncher.co.uk

Library views

Library views include grid, list, logo, carousel, and cover flow.Read 9 Oct 2026 · onyxlauncher.co.uk

Linux integrations

The README says Linux support is in testing; Steam is supported, Epic and GOG are read through Heroic, and Lutris and Bottles can be detected for folder scans.Read 8 Oct 2026 · github.com

Linux packages

The site lists Linux AppImage, .deb, and .rpm builds as testing and warns users to expect rough edges.Read 8 Oct 2026 · onyxlauncher.co.uk

Linux support limits

The site says Linux support has rough edges and asks users to report problems.Read 9 Oct 2026 · onyxlauncher.co.uk

macOS support

The README says macOS is not supported and is not currently planned.Read 8 Oct 2026 · github.com

Metadata and artwork

Users can edit game titles, release dates, and developers, and search multiple sources for box art and banners.Read 9 Oct 2026 · onyxlauncher.co.uk

Mod managers

Users can open a preferred mod manager for a game from its right-click menu or details panel.Read 9 Oct 2026 · onyxlauncher.co.uk

Open source

The site describes Onyx as open source.Read 9 Oct 2026 · onyxlauncher.co.uk

Store integrations

The site names Steam, Epic, GOG, and Xbox among the libraries Onyx can import.Read 9 Oct 2026 · onyxlauncher.co.uk

Target users

The site describes Onyx as a focused launcher for players who want less setup overhead than Playnite.Read 9 Oct 2026 · onyxlauncher.co.uk

Windows and Linux

The site offers a Windows installer and says Linux builds are in testing as AppImage, .deb, and .rpm packages.Read 9 Oct 2026 · onyxlauncher.co.uk

Where Specifiction places it

• Game launchers#55 of 686.9
• Game Library Managers#34 of 407.0