Best Free Game Servers for self-hosting

Tower-defense and factory game with servers

Replaces Factorio

Open-source remake of RollerCoaster Tycoon 2

Replaces RollerCoaster Tycoon

Tool for farming Steam cards from multiple accounts

Replaces Idle Master

Self-hostable browser version of the 2048 sliding puzzle

Replaces Mobile puzzle games

Open-source turn-based survival roguelike

Replaces NetHack

High-performance Minecraft server software

Replaces Vanilla Minecraft server

Open-source reimplementation of Civilization V

Replaces Civilization V

Open-source Minecraft launcher for managing instances and modpacks

Replaces Official Minecraft Launcher, CurseForge app

Open-source MMORPG server framework for World of Warcraft

Replaces official WoW servers

Minimalist text adventure game for your browser

Free space exploration and trading game

Replaces Escape Velocity

JavaScript library for creating Minecraft bots and automation

Replaces commercial game bot frameworks

Kubernetes-based hosting and scaling for dedicated game servers

Replaces GameLift

Open-source factory-building puzzle game

Replaces Factorio

Turn-based fantasy strategy with multiplayer server

Replaces Heroes of Might and Magic

Visual novel engine for creating story-based games

Replaces TyranoBuilder

Open-source engine for Heroes of Might and Magic III with multiplayer

Replaces Heroes of Might and Magic III original

Bridge that lets Bedrock players join Java Minecraft servers

Replaces Minecraft cross-play workarounds

Lightweight, scalable game server framework in Go

Replaces proprietary game backends

Lightweight, extensible Minecraft-compatible game server

Replaces Minecraft Server, Spigot

Free 3D kart racing game with online servers

Replaces Mario Kart

Web control panel for managing game servers

Replaces Multicraft, Pterodactyl

Narrative scripting language for interactive fiction games

Replaces Yarn Spinner

LinuxGSM

Game Servers

Command-line tool for dedicated game servers

Replaces TCAdmin, Multicraft

Docker container for headless Steam game streaming

Replaces GeForce NOW

Unique puzzle game designed for geeks and developers, where you solve

Open-source 3D real-time strategy game

Replaces Command & Conquer

Open-source voxel world game and engine

Replaces Minecraft

Open-world multiplayer voxel RPG with servers

Replaces Cube World, Minecraft

Open-source engine for the S.T.A.L.K.E.R. games

Replaces original X-Ray Engine

In-game map editor for Minecraft single-player and servers

Replaces commercial map editing tools

Generates browsable map tiles from Minecraft worlds

Replaces Dynmap

Containerized dedicated server for Palworld

Replaces official Palworld server hosting

Classic-style 2D side-scrolling platform game

Replaces Super Mario Bros

Open-source real-time strategy and economy game

Replaces The Settlers

Open-source tool for telling interactive nonlinear stories

Replaces Inklewriter

Maintained Quake III Arena engine with dedicated server

Replaces Quake III Arena original

3D web-based map renderer for Minecraft worlds

Replaces Dynmap

Retro 2D multiplayer shooter with servers

Replaces Worms, Soldat

Self-hosted block-stacking puzzle game in the browser

Replaces Tetris

Highly configurable drop-in replacement for Paper Minecraft servers

Replaces Vanilla Minecraft server

Dockerized dedicated server for the game Valheim

Replaces official Valheim hosting

Essential commands and tools plugin for Minecraft servers

Replaces commercial server management plugins

Modern high-performance Minecraft server proxy

Replaces BungeeCord

Browser-based open-source empire strategy game

Replaces Civilization

Self-hosted server list redirect for Minecraft Bedrock consoles

Replaces Console server restrictions

Free city-building simulation game

Replaces SimCity

Open-source reimplementation of Chris Sawyer's Locomotion

Replaces Chris Sawyer's Locomotion original

Open-source space adventure and trading simulator

Replaces Elite, Frontier

Add network play functionality to Rockstar North's Grand Theft Auto

Docker image for running Minecraft Bedrock Edition servers

Replaces Minecraft Realms

PufferPanel

Game Servers

Open-source game server management panel for many games

Replaces AMP, Multicraft

Competitive top-down shooter blending Counter-Strike with Hotline

Natural-language design system for interactive fiction

Replaces TADS

Free turn-based strategy game with a dedicated multiplayer server

Replaces Civilization

Open-source 2D real-time strategy and economy simulation

Replaces Anno series

Lightweight Java server software for Minecraft Bedrock Edition

Replaces Minecraft Bedrock Dedicated Server

lodestone

Game Servers

Free open-source control panel for self-hosted game servers

Replaces AMP, Pterodactyl

Browser-based incremental idle game of civilization evolution

Replaces Cookie Clicker, Universal Paperclips

Self-hostable open-source educational programming game

Replaces Commercial programming games

Open-source voxel FPS compatible with Ace of Spades servers

Replaces Ace of Spades

Open-source interpreter for RPG Maker 2000 and 2003 games

Replaces RPG Maker RTP runtime

Server modification platform for Source engine dedicated servers

Replaces Vanilla Source dedicated server

Free FPS/RTS hybrid game with a self-hostable dedicated server

Replaces Tremulous

Gameyfin

Game Servers

Video game library manager with automatic scanning, web access,

Performance-focused Paper fork for Minecraft servers

Replaces Vanilla Minecraft server

Free pixel-art real-time strategy game on the OpenRA engine

Replaces Command & Conquer

Lightweight multiplayer first-person shooter

Replaces Counter-Strike

Open-source turn-based space empire strategy game

Replaces Master of Orion

Self-hosted analytics plugin for Minecraft servers

Replaces Commercial game analytics

Minecraft protocol and bot library written in Go

Replaces commercial game bot frameworks

Hostname-based reverse proxy router for Minecraft servers

Replaces Manual port mapping

Implementation of Terraforming Mars board game

Open-source 2D space trading and combat game

Replaces Escape Velocity

Ownfoil

Game Servers

Nintendo Switch library manager, with automated management tasks (file

LAN Party game caching made easy

Multiplayer server for The Elder Scrolls III via OpenMW

Replaces Morrowind single-player

Free open-source RTS with self-hostable multiplayer

Replaces Supreme Commander

Minecraft proxy with domain-based routing and idle hibernation

Replaces Manual server management

Engine and editor for creating point-and-click adventure games

Replaces Visionaire Studio

Cooperative platformer based on Teeworlds

Replaces Teeworlds

Self-hostable chess server playing multiple chess variants

Replaces Chess.com

Open-source flight simulator with multiplayer

Replaces Microsoft Flight Simulator, X-Plane

Community patchpack extending OpenTTD multiplayer servers

Replaces Transport Tycoon

Drop

Game Servers

Game distribution platform, designed for distributing and sharing

BungeeCord fork for proxying Minecraft Java multiplayer networks

Replaces BungeeCord

Maintained engine and server for Wolfenstein: Enemy Territory

Replaces Wolfenstein: Enemy Territory original

NPC plugin for Bukkit, Spigot and Paper Minecraft servers

Replaces commercial NPC plugins

Open-source turn-based colonization strategy game

Replaces Sid Meier's Colonization

Fast-paced free arena first-person shooter

Replaces Quake, Unreal Tournament

Sandbox voxel game with multiplayer servers

Replaces Minecraft

Geography multiplayer game

CLI for executing queries on a remote Valve Source dedicated server

Open-source space trading and combat game inspired by Elite

Replaces Elite

A web-based pictionary game

Open-source city building and management game

Replaces SimCity

Advanced Minecraft server stress-testing and bot framework

Replaces commercial load-testing tools

JavaScript Minecraft server implementation built on Node.js

Replaces vanilla Minecraft server

Turn-based artillery strategy game with servers

Replaces Worms

Fast-paced open-source arena first-person shooter

Replaces Quake, Unreal Tournament

An open-source 2D battle royale game inspired by surviv.io

Open-source dungeon-keeper-style real-time strategy game

Replaces Dungeon Keeper

Bash control script for managing multiple Minecraft servers

Replaces Minecraft server panels

Cross-platform Minecraft server manager

Modding API and plugin platform for Minecraft servers

Replaces Bukkit

Web platform powering the RetroAchievements community

Replaces Xbox Achievements

Open-source 3D real-time strategy game

Replaces Age of Empires, Warcraft III

Open-source multiplayer action and tactics game

Replaces Clonk

Open-source Yu-Gi-Oh card game client with self-hostable servers

Replaces Yu-Gi-Oh Master Duel

Admin, ban, and communication management system for games running

Fast-paced real-time strategy game for the Linux terminal

Replaces commercial RTS games

Self-hosted game library and download manager

Replaces Steam library, Playnite

Virtual surface in the browser on which you can play board, dice

Replaces playingcards.io

Self-hostable web server for playing chess variants online

Replaces Chess.com, Lichess

Open-source voxel sandbox game for Luanti

Replaces Minecraft

Dockerized dedicated server for the survival game Enshrouded

Replaces commercial game server hosting

Free Quake III-style arena shooter with servers

Replaces Quake III Arena

3D Tron-style lightcycle multiplayer game

Replaces Tron

Easy-Wi is a Web-interface that allows you to manage server daemons

Extensible Python server for Ace of Spades and OpenSpades

Replaces Ace of Spades official server

Self-hostable server software for YGOPro card game clients

Replaces Commercial card game servers

Generic SteamCMD-based dedicated game server containers

Replaces commercial game server hosting

Self-hosted private server for the Screeps programming MMO

Replaces Official Screeps cloud

Open-source strategy game of defending Earth from aliens

Replaces XCOM

Free Lemmings-inspired puzzle game with network multiplayer

Replaces Lemmings

Open-source game server control panel

Replaces AMP, TCAdmin

Self-hostable content database for Luanti mods and games

Replaces Steam Workshop

Open-source transport and economy simulation game

Replaces Transport Tycoon

Survival voxel game playable on self-hosted Minetest servers

Replaces Minecraft

Dedicated server engine for the Nexuiz arena shooter

Replaces Quake III Arena

Survival sandbox game for self-hosted Luanti/Minetest servers

Replaces Minecraft

Geography game

Server hosting tool for Minecraft and other multiplayers

Open-source 2D MMORPG with self-hosted servers

Replaces Ragnarok Online

Gameboy in your browser

Sync games and save files across multiple devices

2048 game clone in 3D

Tunnel server for hosting Command and Conquer multiplayer games

Replaces proprietary game matchmaking servers

2048 variant with Euro coins and notes

2048 game clone

Set of games Framagames from Framasoft

Wordle-based online word game

Scrabble® game free play not enforcing rules

Create a virtual game room around a connected buzzer (documentation