Regnum Online is a free MMORPG that concentrates on PvP (Players vs Player) and has a great graphics.
This game was first started several years ago (the graphics has improved a lot since then) and at the time there was only the Spanish/English Ra server.
Because the company that develops Regnum Online – NGD Studios is from Argentina, most of the users on the Ra server are Spanish speakers.
A few years ago a new English only server was formed named Horus, but there was a problem back then – characters where not transferable between servers.

Now, until the 06/08/2010 you can transfer your old characters for from the Ra server to Horus, free of charge for a limited time !
Read here on how to make the transfer.

There are also German and French servers but currently you cannot transfer your old characters to those servers.

For those of you who used to play this game years ago, now the game has improved a lot.
As you can see from the screenshots the graphic is excellent and now feature emotions !
Invasions also been recently introduced which add exciting new elements and improvements to the core gameplay of the game.

Screenshots

Regnum Online is a FREE TO PLAY (F2P) MMORPG inviting you to play with no level or time restrictions. All that is required is that you fight for your realm.
– Regnum offers 3 realms to choose from.
– 9 fully customizable player characters.
– An ever expanding number of quests.
– The ability to capture forts and castles.
– Expansive lands to explore.
– Glorious graphical environments in DirectX and OpenGL.
– Support for Windows and Linux platforms.
– Premium content is available for enhanced game play.

Links
Regnum Online
Guide on Transferring The Characters from Ra To Horus
NGD Studios