Guild Wars 2

In GW2 leveling at the same time and remaining close in level to your fellow adventurers is not necessary to enjoy the game.

Your level will be automatically scaled to the areas that you’re in. That means you can meet up with your friends whenever and where-ever without the higher lvl character squashing everything like a bug, getting no experience or decent loot, and being bored to death.

Cyninja.2954:

As is, it is absolutely possible to never group and play 95% of the game solo and have a blast.

This is absolutely true. I solo this game most of the time, only exception is when I play with my friends (all of whom are known to me in real life). I’ve never done dungeons, or fractals. I don’t do PvP either, though some of my friends do. I personally prefer to explore and discover new things, both about the world and my character. GW2 allows for more experimentation and rewards more exploration than any other MMO I’ve ever seen.

If you feel like you’re mediocre and it’s costing you enjoyment of the game I would recommend trying new things. Switch your weapons out for a different set and you get a whole new set of skill that you may like way better. Vary the skills you use, or try a different profession. You can level to 20 in a day or less of play, and at that point you know 80% – 90% of how that profession plays and whether you like it or not.