Scalable open-source game backend server: multiplayer, matchmaking, leaderboards, chat, and social features for games.

The Unity SDK for LootLocker

Fab.io is a lightweight game backend framework written in Go (Golang).

Game backend platform built on Nova/OTP

Minimalistic backend service for Unreal Engine, made with Unreal Engine

This is the SDK (Software Development Kit) for interacting with LootLocker's powerful systems from your Godot game. It is a pure GDScript code package provided by the LootLocker team. LootLocker is a game backend-as-a-service that unlocks cross-platform systems so you can build, ship, and run your best games.

Croupier is a universal GM (Game Master) backend system designed for game operations. It supports integration with multi-language game servers and provides a unified management interface along with powerful extensibility.

Game Microservice In Action blog sample code

PaaS solution for deploying and managing serverless game backends

🚀 Modern TypeScript backend for web games with Fastify, tRPC & Prisma. Features magic link auth, type-safe APIs, and game-ready architecture.

Defold client SDK for Asobi game backend

The gamedo is a distributed backend game server framework(under planning and developing).

Moved to https://github.com/rivet-gg/modules

Persistent world memory engine for games. Chronos lets NPCs remember events and evolve behavior over time.

Defold arena demo for the Asobi game backend

The all-purpose .NET monoservice for the Beyond Immersion game servers.

MatchKernel is a backend-driven matchmaking engine built in C++ that groups players by skill rank using queues and matches them through a multi-phase algorithm. Features dynamic rank expansion for long-waiting players, a REST API via cpp-httplib, and a real-time dashboard frontend in vanilla JavaScript.

Asynchronous Turn-Based Game Backend - WIP

AI-driven DnD game backend built with FastAPI and DeepSeek, designed for modular event protocols and rapid MVP iteration.

Multiplayer REST-style backend API for the Greek card game Xeri