Gaseous Server

Gaseous Server is an open-source server application for organizing and managing game ROM collections, providing title management, metadata lookup, and in-browser emulation of supported ROMs. It is implemented as an ASP.NET Core (.NET) application and is distributed with Docker Compose deployment artifacts. (github.com)

Key Features

• ROM and title library management with import and signature matching for identification.
• Built-in browser-based emulation (EmulatorJS) to run supported ROMs from the web UI.
• Metadata retrieval from external sources (IGDB and others) with optional Hasheous proxy support for hashed lookups.
• Background tasks such as library scanning and metadata/signature refresh.
• User authentication and account support added in later releases (noted since v1.7.0).
• Container-friendly deployment with Docker Compose and CI automation for builds.

Use Cases

• Personal retro game library: organize and browse large ROM collections with metadata and cover art.
• Lightweight in-browser play: run supported games directly from a home server via the integrated emulator.
• Metadata enrichment and archival: use signature imports and external metadata sources to catalog ROM collections.

Limitations and Considerations

• Database migration between MySQL and MariaDB may require rebuilding the database due to earlier MySQL-specific schema choices; re-import via library scan may be needed. (github.com)
• IGDB access requires an API key unless you use a proxy service; offline metadata workflows depend on available signature DATs and the Hasheous project.
• The project maintainers recommend caution when exposing the server directly to the internet; use VPN or other secure access methods if remote exposure is required. (github.com)

Gaseous Server is a focused tool for retro gaming enthusiasts who want a web-accessible, metadata-rich ROM management system with integrated emulation. Its .NET-based architecture and container deployment make it suitable for home servers and small self-hosted environments.