developers need to grow balls and make 64-bit a requirement. Make it so people have to be using 64-bit version of Windows to use your game. It's not like developers didn't have to do this in the past with games.
No doubt! No one running a 32bit OS in 2013 is a serious gamer, those systems are going to be low-end bargain boxes or business systems that for compatibility reasons HAVE TO use a 32bit OS so the only games that crowd is likely to attempt to play are casual flash games or simple puzzle type games... They need to stop catering to this crowd when making things like shooters, RTS, RPGs, MMOs etc..