If we're talking "Paper & Pencil" RPG's, I WISH I could play MUCH more often... but alas, I'm a grown up now and eveyone I would play with is either busy when I'm not or just too far away. I've probably played paper & pencil RPGs a little over a handful of times, so I'm still a "newbie" at them. LOL.
If we're talking video game RPGs, I used to play Fly For Fun online, but it got old after I reached about level 80 with 4 different characters... Haven't played in months...
I DO play Solo RPGs on the systems they're on... I finished
FFXIII on the PS3 just recently... Finished
Dragon Age (and the expansions) too. Can't wait for the next incarnation of either of these.
I also just finished the main story of
Dragon Quest IX on the DSi... GREAT game!!! Easily an 8.5 for me. Wish the main story were a little LONGER. LOL. Now to do the side-quests... and extra dungeons.
Just bought
Etrian Odyssey III: The Drowned City and
Golden Sun: Dark Dawn. Can't WAIT to get into those, but I'm forcing myself to finish up the leftovers of
Dragon Quest IX. If I start another game, I have a hard time getting back to the previous one... kinda like
Dragon Quest IV which is waiting for me to return to it SOMETIME... LOL.
I LOVE RPG's... paper & pencil or vid games... It doesn't matter.

They provide me with a great deal of "escape" so that I can retain whatever sanity I DO have. LOL.