Deathworld by Harry Harrison is a science fiction novel in which the main character, Jason Dindal, a gambler and military expert, lands on a planet known as Deathworld. This planet is known for its aggressive natural forces that are incomprehensible to many other galactic races. For Jason, the test of survival begins in the most dangerous environment, where he is forced to use all his skills and intelligence to survive. This book fascinatingly reveals the theme of nature and civilizational progress, where the main question is who will be stronger: man or nature?"