I'm not really an RPG person either, but I used to play Pokémon a lot until the games started getting too complicated starting with Gold & Silver (though even then, I played the Silver version a little). I've also played Dungeons & Dragons a little, though not recently, and it's kinda hard for me because I'm not great at ad-libbing.

So the LJ Dungeon and Space Adventures are probably the only RPGs that I'll consistently enjoy :)