Scratch

Have a project idea that feels like it needs a little more care? Or do you just feel like being a nerdy professional game designer? Then this game design document template (compilation of text documents) by Tim Ryan is for you! You probably won't need some segments of it though cuz they have to do with paying employees and commercial distribution, lol.

It's the "Anatomy of a Design Document: Templates" by Tim Ryan. It's a zip file containing some tiny-sized documents that can be read by almost all Windows PCs. And the download is pretty small too 

I plan to use it for a project of mine I'm coming up with.

here's the link to where you can see and download the document:
http://www.gamedev.net/reference/list.asp?categoryid=23

No, it's not a virus; and yes, it goes in this section because this is about project ideas, and these documents will help you fulfill your project idea.