In the online store I saw mention of a book called Playing With Pyramids. I did not see it listed anywhere in the online store.
Does it have rules for games in it?
Are they the exact same games as in Pyramid Primer #1(which I already have)?
Is it available anywhere?
It is technically out of print, but you can get it at different places online that still have copies. It's quite useful and includes many games not included in the pyramid primer... for now.