Originally Posted by
Songoty
There are many world emulators targeting various revisions of Runescape. Keep in mind most world servers will only encode and decode for a specific revision.
New engine servers require xtea keys (map data) sent from the world to decrypt the map files. Most 317's afaik have fairly complete maps
You can find old engine one's in the Rs2 Server section, and new engine ones in the Rs2 503+ Server section.
You have to program one. There's always going to be bugs and glitches. No one is going to hand you a perfect Rs emulator.