Just two, OSRS gold, which is the one coming to steam, then there is Old School Runescape (OSRS). OSRS is a version of this sport out of 2007 but it still receives fresh upgrades.
I checked up on mine a few months ago and I think it got wiped a while back when they elaunched something. I can't remember what, I think old school . Either way old college and 3 are both lvl 1. Perhaps I could jump back in. Sucks though lava cape, a few 99 capes, and a pleasant bankroll
In modern times, I would probably recommend just playing different games famous for their atmosphere stories, such as Fallout New Vegas. It's a skinnerbox plus a mindhack, but a few people take pleasure in the skinnerbox.
Quests aren't really the principal means to level up in the two variants of Runescape. They do provide you some XP for certain abilities when you finish them, but if you did all of the quests in the game you would not have max stats in anything. In fact you'll find that for lots of the mid to late game quests you will have to Cheap Runescape gold grind some abilities yourself to meet the requirements to even begin it. With Runescape the main way you advance your character is grinding mobs for battle XP and grinding the abilities for their individual ability XP.
OpenRSC is a pretty good approximation of their original RSC. You won't be able to log in to your old account, but all the additional content is there.