Full Game Name: State of Decay 2
Edition Name: Collector's Edition
Platform(s): N/A (No game included but is an MS exclusive title.)
Region(s): NA
Publisher: N/A (No game included but is an MS exclusive title.)
Release Date: 22nd May 2018
Price (RRP): $69.99
Package Description: "The Collector’s Edition includes an exclusive SteelBook® case, zombie mask, and “thumb-drive,” this collectible edition also includes a State of Decay 2 patch and a human brain SteelBook® stand."
Link(s) to source(s): Link
Other Info/Pics: 
I searched and whilst this was also posted in the Steelbook sub-forum I thought it should probably have its own entry here too.
Personally I think it looks like an absolute joke though and that they couldn't even make it look decent in their announcement promo picture.
In my opinion that mask looks like something out of Poundland at Halloween, thumb drive looks like another cheap novelty Halloween product, the Steelbook stand looks so, so cheap and the patch looks completely unremarkable.