[1][2] It is the fourth song by the band based on a video game following "Warriors" for the 2014 League of Legends World Championship, "Monster" for Infinity Blade III, and "Enemy" featuring JID for Arcane.

[3] "Children of the Sky" was written by Dan Reynolds, Wayne Sermon, Ben McKee, Mattias Larsson, Robin Fredriksson, and Inon Zur.

It is the first song released by the band to not feature Daniel Platzman since his hiatus from the Mercury World Tour in March 2023.

The song, like the game, asks some of the most difficult questions we face as humans trying to find our place in the universe.”The music video for "Children of the Sky" premiered on September 19, 2023 and was directed by FILFURY, with VFX done by Mister and color graded by Company 3.

[5][6] The video features a young boy dreaming about leaving Earth and embarking on a spaceship journey as an adult.