Server Emulators (Ragnarok Online)

See also: History of Ragnarok Emulation

This page lists server emulators from as early as 2002 up until the present day.

Early Server emulators

• ROServer (0006.rar) - Predecessor to 0052.lzh (Server Emulator), presumably the same emulator, but not confirmed.
• 0052.lzh (Server Emulator) - Predecessor to most of the RO emulators posted on EmuServer Of Ragnarok (EOR) BBS
• YARE (Server Emulator) - Based also on a mixture of 0052.lzh and Athena itself.
• Athena (Server Emulator) - Originally posted on EmuServer of Ragnarok, Japanese. The progenitor of a very large number of emulators.
• I-Athena (Server Emulator) - Athena rewrite/improvement project which was included in YARE and which was based off Athena and YARE code.
• Weiss (Server Emulator) - Based on 0052 and Athena.
• Apurodani (Server Emulator) - Short-lived emulator which was provided on EOR BBS based on code which predates 0052.lzh. Was largely superceded by 0052.lzh and development ceased very shortly thereafter.
• ROSE (Server Emulator) - Relatively obscure emulator which as based off the RO protocol but does not appear to be based off 0052.lzh.

Athena derivatives

• AthenaX (Server Emulator) - A Japanese off-shoot of I-Athena (Athena) which was relatively short-lived.
• EAthena (Server Emulator) - English translation of Athena which was largely in Japanese.
• hAthena (Server Emulator) - Proof of concept emulator based off Athena with various additional features and scripts but never released.
• AthenaAdvanced (Server Emulator) - GUI-Based Athena derivative.
• OmniAthena (Server Emulator) - GUI/console-based Athena derivative based off eAthena/jAthena, founded by YARE developers.
• Project Odin (Server Emulator) - An Athena and YARE offshoot, started by OmniAthena developers
  • Project Apollo (Server Emulator) - A revival of Project Odin run by previous developers of Odin and MaSs Zero.
• Freya (Server Emulator) - Offshoot of eAthena/Athena focused on stability.
• Nezumi (Server Emulator) - Offshoot of eAthena/Athena which was related to trying to provide performance and stability.
• SeAr (Server Emulator) - Traditional-Chinese translation of eAthena developed as a separate project.
• rAthena (Server Emulator) - Renewal Athena - A successor to eAthena, currently still in development.
• Hercules (Server Emulator) - A successor to eAthena, currently still in development.
• cHercules (Server Emulator) - A Traditional Chinese version of Hercules.
• 99MaxEathena (Server Emulator) - A Traditional Chinese successor to eAthena.
• Panda Simulator (Server Emulator) - Previously called rAthenaCN, a Chinese successor to rAthena.
• Cronus Emulator - The very first Brazilian translation fork of rAthena.
• brAthena - The Brazilian translation fork of the Hercules

Weiss derivatives

• eWeiss (Server Emulator) - English version of the original Weiss.
• DarkWeiss (Server Emulator) - Successor to eWeiss(?)
• Fusion (Server Emulator) - Successor to eWeiss(?)
• Helios (Server Emulator) - Rewrite of Fusion and Weiss
• Vidar (Server Emulator) - Proprietary successor to eWeiss and Weiss
• Prometheus (Server Emulator) - Open source successor of Weiss and Vidar

Proof of concept

• PQRS (Server Emulator) - An unreleased POC written in C# using multithreading
• Rust-RO - A modern emulator written in Rust