Here are some other resources for you
Jesse Schell's The Art of Game Design is a good read about how to approach making games. It doesn't contain a lot of technique though.
Game Programming Gems 1 & 2 go into very detailed technique, but is mostly engine level stuff that Unity and plugins can take care of now.
Gamasutra.com is read and contributed to by a lot of game devs.
Gdcvault.com is a repository of GDC conference decks, though most of them are behind subscription wall.
Jesse Schell's The Art of Game Design is a good read about how to approach making games. It doesn't contain a lot of technique though.
Game Programming Gems 1 & 2 go into very detailed technique, but is mostly engine level stuff that Unity and plugins can take care of now.
Gamasutra.com is read and contributed to by a lot of game devs.
Gdcvault.com is a repository of GDC conference decks, though most of them are behind subscription wall.