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robinsonade

n. A genre of adventure fiction where a hero is stranded alone on a desert island and has to survive with his own wits.

Wikipedia
Robinsonade

Robinsonade is a literary genre that takes its name from the 1719 novel Robinson Crusoe by Daniel Defoe. The success of this novel spawned so many imitations that its name was used to define a genre, which is sometimes described simply as a " desert island story".

The word "robinsonade" was coined by the German writer Johann Gottfried Schnabel in the Preface of his 1731 work Die Insel Felsenburg (The Island Stronghold). It is often viewed as a subgenre of survivalist fiction.