
I know that Adventure is very signifcant in the history of video games. Heck, there's even an exhibit about it at the National Videogame Musuem near my house (grr). But I've never been able to get into that game myself.
Speaking of Crystal Castles, I just reviewed a book by the guy who helped made that game! Link is below. Also, when I was writing for The Dallas Morning News, I reviewed a game called Gubble that was made by the same guy and plays just like Crystal Castles.
http://www.gamerdad.com/blog/2019/03/08/mercury-learning-books/