# jzyong/game-server

Distributed Java game server, including cluster management server, gateway server, hall server, game logic server, background monitoring server and a running web version of fishing. State machine, behavior tree, A* pathfinding, navigation mesh and other AI tools

Repository: https://github.com/jzyong/game-server
Canonical: https://ross.abutalabs.com/products/game-server
Homepage: https://jzyong.github.io/game-server/
Language: Java
License: MIT
License Family: permissive
Topics: java, game, server, distributed, chess, gate, fish, mina, netty, behavior-tree, rpg, navmesh, astar-algorithm, ai, mmo, mmorpg-server, quad-tree
Last push: 2025-12-19T22:49:29+00:00

## Health v2 (maintenance only)
Score: 49/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 58, release rhythm 8, longevity 100
- inputs: {"age_days": 3304, "days_push": 257, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1227, forks 490 (observed 2026-08-28T04:04:03.271912+00:00)

## What it is
A distributed Java game server framework for chess/card and MMORPG games, providing cluster registry, gateway, hall, game logic, and monitoring servers with horizontal scaling. It includes AI tools such as state machines, behavior trees, A* pathfinding, and navigation meshes, plus wrappers for Redis, MongoDB, message queues, and multi-protocol networking (TCP, UDP, WebSocket, HTTP).

## Use cases
- build a distributed mmorpg game server in java
- host a chess and card game backend with horizontal scaling
- implement a gateway server supporting tcp udp websocket and http clients
- add behavior trees and a* pathfinding to game ai
- manage game server clusters with registry and monitoring
- integrate redis cluster and mongodb into a game backend

## When to choose
- building a Java-based MMO or board game backend needing multi-protocol gateways
- you want a ready-made distributed game server architecture with cluster management
- you need bundled game AI tools like navmesh and behavior trees in Java

## When to avoid
- starting a new project - the author recommends GameServer4j and GameAi4j instead
- you need a non-JVM language or modern JDK features (JDK 17 upgrade still pending)
- you need a actively developed framework with frequent new features

## Facets
- artifact type: framework
- maturity: maintenance
- function: game-engine, networking, message-queue, caching, database, monitoring, middleware
- domain: microservices, gaming-tools, backend, networking
- platform: jvm, cross-platform, self-hosted
- tags: game-server, mmorpg, netty, mina, behavior-tree, astar, navmesh, gateway-server, cluster-management, chess-and-card-games, game-development, linux

## Member repositories
- jzyong/game-server (main) score 49

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:03.271912+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:15:16.052396+00:00, confidence not recorded.
  - readme: https://github.com/jzyong/game-server (fetched 2026-08-28T04:04:03.271912+00:00, sha c3162ca035de)
  - homepage: https://jzyong.github.io/game-server/ (fetched 2026-08-29T12:22:55.485807+00:00, sha 89d93ff9d3d0)
- Data as of 2026-08-30T08:39:29.467469+00:00.