Moonstorm is a 2024 young adult science fiction novel by Yoon Ha Lee. It won the 2025 Locus Award for Best Young Adult Book and was a finalist for several other accolades.
Its sequel, Starstrike, was published in 2025.
Reactor writes that the novel "starts with a bang and never takes its foot off the gas, tearing through schemes, trauma, chaos, and battles."
Locus calls the book "a delightfully fast-paced adventure novel. The main characters are believable, their relationships have room to develop, and the mechas are intriguing."
Kirkus notes the novel's "[a]ction-packed space battles and strong worldbuilding."