Hello Goodboy is a non-linear adventure game set in the afterlife. Players guide a lost soul named Iko, accompanied by his dog Coco, through acts of kindness, mending past mistakes, and solving mysteries. Player choices impact the story and lead to multiple endings.The game centers on Iko and Coco exploring the afterlife, interacting with its denizens to uncover Iko's past. Key mechanics involve using Coco's abilities and Iko's problem-solving skills to resolve metaphysical mysteries. Players must manage time, as spending it with some souls precludes relationships with others, shaping the narrative towards one of several distinct conclusions.