Open source. Open possibilities.

Open-source Go MUD server with a playable default world, web admin/client, module manager, ANSI colors, layered config, HTTPS setup, Docker, and install scripts.

Lichess is a free, open-source online chess platform offering real-time play, tournaments, analysis, training tools, and multilingual support. Built with Scala and TypeScript, it hosts billions of games and supports community contributions.

Self-hosted live map for Palworld dedicated servers showing players, bases, Pals, NPCs, and server metrics via Docker. Read-only, no client mods required.

Atuin replaces the standard shell history with a SQLite database, offering advanced search capabilities and encrypted synchronization across multiple machines.

An open-source Minecraft server load tester that connects swarms of bots and reports real server-impact metrics such as estimated TPS, latency, throughput and kick reasons. Includes CLI, web GUI, control-plane API, debug console and programmable bots. Authorized testing only.

GitHub CLI (gh) is the official command-line tool that brings GitHub concepts like pull requests and issues directly to the terminal.

Monitors all 512 official CVE Numbering Authorities to track their publishing activity trends with a live dashboard, updating every 3 hours.

Keycloak is an open-source Identity and Access Management solution designed to provide authentication and secure services for modern applications.

Pterodactyl is a free, open-source game server management panel built with PHP, React, and Go. It runs each game server in an isolated Docker container and provides a web UI for administration and users.

Zulip is an open-source team chat application featuring unique topic-based threading designed for both live and asynchronous communication.

Element is a web and desktop collaboration client built for the Matrix protocol, providing a user interface for secure, decentralized communication.

Paperless-ngx is a document management system that transforms physical documents into a searchable online archive to reduce paper usage.

Modern Multi-User Dungeon server in TypeScript with Telnet, WebSocket, React drag-and-drop world builder, MCP server, and JSON/SQLite/PostgreSQL storage.

Sunshine is a self-hosted game streaming host for Moonlight clients, offering low-latency remote play with hardware or software encoding, a web UI for configuration and pairing, and support for Windows, Linux, macOS and FreeBSD.

Uptime Kuma is an easy-to-use, self-hosted monitoring tool designed to track the uptime of various services and provide notifications upon failure.

Agno is a framework and runtime for building, running, and managing agent platforms, providing a full stack from SDK to UI.

AzerothCore is an open-source, modular C++ game server framework for hosting private World of Warcraft servers, recreating the Wrath of the Lich King 3.3.5a gameplay experience.

Temporal is a durable execution platform designed to build scalable applications by automatically handling intermittent failures and retrying failed operations.

nexus-rider is a JetBrains Rider plugin that acts as an MCP proxy server, forwarding AI tool calls to NexusLink within Unreal Engine (UE) instances.

Activepieces is an open-source AI automation platform and Zapier alternative that allows users to build extensible workflows using a TypeScript-based framework.