About 90 to 98 percent.
This depends entirely on how long you play it, and the graphical settings. The more you play it at higher graphical settings, the more Internet usage it will use up.
I have seen estimates that RuneScape uses 25 MB/hour or less. That would be about 7 hours of Internet a day for a full month, if you do nothing else with your Internet bandwidth quota. But to be on the safe side, check the Internet usage now and then, if you have such an option.
it means unlimited internet usage.
You have to pay for internet usage anyway, that question is irrelavant.
Google has the highest usage.
No Runescape is an Internet MMORPG. It is only playable on the PC/Mac.
virgin broadband
Runescape
It depends on how it is used.
What? iPhone?
Yes there are tons of Internet usage monitor apps out there that help monitor all Internet usage like sites, mails, and chats.
If your Wii is connected to your internet connection, then it is using your internet therefore it is wasting your internet usage. Depending on your internet bandwidth plan, it could use up all your bandwidth or none at all if you have unlimited! :D