His early work, particularly Drakengard, showcases a fascination with dark fantasy settings, morally ambiguous characters, and challenging themes such as war, violence, and the nature of humanity. This era establishes his willingness to explore uncomfortable and unconventional subjects.

With NieR, Yoko Taro begins to explore more overt philosophical and existential themes, such as the meaning of existence, the nature of sacrifice, and the impact of technology on humanity. This marks a deepening of his narrative complexity.

NieR:Automata represents a culmination of Yoko Taro's storytelling techniques. The game explores themes of identity, free will, and the relationship between humans and machines, while employing multiple perspectives and meta-narrative elements to create a deeply engaging and thought-provoking experience.

Yoko Taro continues to experiment with unconventional narrative structures, meta-commentary, and gameplay mechanics in his subsequent projects, pushing the boundaries of what video games can be.