source-query

BeaconServer for Subnautica 2: runs the game as a dedicated server on Windows; players join by IP and port through the Beacon app.

A lightweight and extensible Go client for A2S server queries.

A2S_INFO, A2S_PLAYER and A2S_RULES cacher with proxy for other packets.

Lightweight telemetry aggregation server for applications and game servers.

Open-source Grounded 2 dedicated server control service for Lantern: world snapshots, Source A2S query, RCON and the admin API.

Zero-dependency game server query library for PHP and Node/TypeScript — A2S/Source, Minecraft, FiveM, Palworld, SA-MP and 23 protocol families across 53 games, with 1:1 matching ports.

Solarpunk dedicated server for Sundial: runs the game headless on Windows with A2S query, RCON and an admin API. Players join with the Sundial app.

A sync + async + sans-I/O library for the Valve Source Query (A2S) protocol.