It's a browser based RPG. Maybe flash, I don't know because I never played it and never want to.
One of those games that spammers are always trying to get referrals to sign up. It looks pretty ridiculous to me. I never played it and don't have even the slightest inclination to even go to the website for it.
I'm sure it's decent but I just prefer playing games like Half-Life 2, which are just more fun to me. If I played a MMORPG it would be WOW probably, but I refuse to try that game because I don't want to become addicted to it.
I have some friends who have been addicted to this game ever since it came out, I really do not get what the big deal it, the game is not all that fun and people spend countless hours each day playing this game, don't they realize that their stats in runescape cannot possibly get them anywhere in life?