Downloading MoonlightRO 5.2 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. MoonlightRO lies within Games, more precisely Roleplay. This free tool was originally designed by Moonlight.
From the developer:
Dedicated to providing players with a stable and lag-free server, many players have come to call MoonlightRO their home. With the original storyline and developing storyline, to the custom quests, the players have been experiencing Ragnarok like never before.
You may want to check out more software, such as Dink Smallwood, DungeonCraft or The Return of Magic Online, which might be similar to MoonlightRO.