noun
gamebook; choose-your-own-adventure book
A book where the reader makes choices that affect the story outcome, often with branching paths and multiple endings.
子どもの頃、ゲームブックをよく読んだ。
When I was a child, I often read gamebooks.
このゲームブックは選択肢によって結末が変わる。
In this gamebook, the ending changes depending on your choices.