Best Open Source MMORPG Games 2025

MMORPG Games

MMORPG Linux FreeBSD Clear Filters

Browse free open source MMORPG games and projects for Linux and FreeBSD below. Use the toggles on the left to filter open source MMORPG games by OS, license, language, programming language, and project status.

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1

OpenKore

OpenKore is an automation tool for Ragnarok Online

OpenKore is an automation tool for Ragnarok Online-compatible games, authorized to be used on KoreRO. **MOVING TO GITHUB** As of February 28th 2016, the OpenKore project has moved to GitHub. Please see the OpenKore wiki for more information: http://openkore.com/index.php/Git This SourceForge page will remain online for now, but the project has been locked in "read-only" mode and no more updates will be published here. **DOWNLOADING KORE FROM THIS PAGE WILL GIVE YOU AN OLD VERSION**

39 Reviews

Downloads: 218 This Week

Last Update: 2016-03-03
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2

Sylverant

An open-source Phantasy Star Online server for *nix

Sylverant is an open-source server for the Phantasy Star Online series of games by Sega, written primarily for Unix-like operating systems. Sylverant has at least partial support for most versions of Phantasy Star Online, from the Network Trial for the Dreamcast through Blue Burst for Windows.

Downloads: 31 This Week

Last Update: 2025-07-25
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3

MultiVerse

The project 'MultiVerse' will be an open, decentralized, 3D virtual world where players and server owners can create or import content, build objects and define custom behaviour using scripts. Players can interact with objects in various ways.

3 Reviews

Downloads: 1 This Week

Last Update: 2013-04-24
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4

Eternal-Gaming Server

A world of warcraft emulator, being programmed by The World of Warcraft Emulation Project team. The software is written in C++, and using the KoNG scripting language and Maxwell backend. Supports Windows XP+ & *nix systems.

Downloads: 0 This Week

Last Update: 2013-04-18
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5

polserver

PenUltima Online Server is a MMO Server, heavily based around the Ultima Online legacy client. This server package is heavily customizable via Configuration files and it's own custom scripting language termed eScript.

1 Review

Downloads: 0 This Week

Last Update: 2016-01-13
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6

viiigine

viiigine is an open source Final Fantasy VIII game engine. The main goal of this project is to redevelop game engine fully compartible with original and providing new abilities (multilanguage support, high resolution, new models, etc) in extensions.

Downloads: 0 This Week

Last Update: 2013-04-24
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