The Tomorrow Children is a post-apocalyptic video game set in a world where most life on Earth has been wiped out due to an ambitious experiment gone wrong. In the aftermath, survivors attempt to rebuild civilization but are hindered by "Izverg", giant beasts formed from the residue of negativity and nightmares that roam the land. Fortunately, engineers discover projection clones who can venture deep into the Void in search of preserved human DNA and use this to help humanity's journey back to its former glory.