I can wholeheartedly agree with this. I do Web Development for a living, so I write a lot off business application backend / frontend JS code. While it's certai

I can wholeheartedly agree with this. I do Web Development for a living, so I write a lot off business application backend / frontend JS code. While it's certainly fun (especially when there's no pre-built solution for some problems and you have to wrap up your own code to fill the gap), most of my personal code revolves about making computer games. These end up for the most part being some multiplayer HTML5 Tech Demos (where I can play with all the fancy new Web Tech I can't use at my day job) or really old-school stuff like doing Z80 Assembly for my very own old-school Nintendo GameBoy Jump & Run (along side with a custom assembler / compiler and toolchain) and digging in dissamblies of commercial games. I can't imaging just doing "work" code, because that can be very exhausting at times. But I certainly have no problem staying up all night and getting that game up and running around 5AM in the morning just to scribble down some more ideas before I finally head off to bed.