Toho's 日本誕生 [1959] Hepburn: Nippon Tanjō (lit. "Japan's Birth")
Toei's わんぱく王子の大蛇退治 [1963] Hepburn: Wanpaku Ōji no Orochi Taiji (lit. "Naughty-Prince & Orochi's Demise")
Capcom's 大神 [2006] Hepburn: Okami (lit. "Great-Deity") Fun Fact: Originally released on PS2 in 2006 & for the Wii in 2008
Given just HOW Important it was for Japan's Mythology, History & Shinto Practice. I'm surprised that there's VERY Few #Kojiki (lit. "Ancient Matters Record") Adaptations. Sure, you'll see MANY nods to it, but for Legit Adaptions you'd expect more than just These & a Few Obscure Manga. #古事記