Heard good things about this game, but I'm wondering if it's a game that can be played casually and still be fun at all. I'm mostly playing D3, and just want something else to play for the times i'm not feeling D3. Any other game suggestions would be cool as well. :)

Its pretty casual until you hit level 96ish

then the exp required to hit the next level increases dramatically and youll have to invest more time if you want to hit the top levels

It's a very fun game at low lvls. I quit at lvl 125 though because it was too hard for me to make money and do tbs missions since I didn't have uber gear. Not much that you can do at higher lvls if you don't have really good items.