Harmony of the Lost (Onorotha) by Peter Behrens

Spiraling from the death of his wife, Paxton Guidry’s reckless search for a cure leaves him stranded on a primitive world. Onorotha is a planet of unprecedented magic and power. Isolated, helpless, and alone, Paxton must navigate the dangers of daily life, where survival is a struggle, and a strange power known as resonance is the best defense. Caught between the blight, a tyrant’s rule, and the oppression of an entire civilization, Paxton discovers that survival is not always enough. Some worlds don’t need saving. They need a spark.