There is no easy answer to your question.
You need to know and understand how to program in HTML to include games in web pages.
.swf is Flash Macromedia files and if you design a game in Flash you need to insert the link for the file into the HTML document.
I don't know what .dcr is.
But in any case, you need to know HTML before you can insert games into web pages. That is not something you can learn easily from forums.
im making my own web page on Page plus 8.0 pdf
how do i add games to my site (.swf and .dcr)
Thz pls help.