I've seen a lot of Runescape private servers lately. How do they work? Most of them are based on the old Runescape, but a few look exactly like the real Runescape.
How do they make the servers? Has the source code of the game been leaked on several occasions, and is that used to make Runescape servers? Or have some people just replicated Runescape, and tried to make the same game themselves (and "stolen" the 3D objects and texture from Jagex to make it look the same, and written the code to be able to replicate most functions of Runescape)?