
Nearing the end of their journey, the brothers at last reach the Tree of Life Naia insists that Naiee venture on to reach the top of the tree. Once inside she reveals herself as a monstrous spider and while trying to eat Naia, the brothers manage to thwart and kill her by pulling off her legs – but not before she mortally wounds Naia.

After successfully defeating the monster, the girl begins seducing Naia, and soon tricks the brothers to enter a cave, much to Naiee's dismay. They arrive at an old town that was in the middle of a battle before everyone suddenly froze to death in-place, and the trio have to escape from an invisible giant that stalks the ruins of the town. The girl in turn helps them travel icy waters, avoiding deadly orca-like fish.

The brothers press on through a valley of dead giants that went to war and save a girl from being sacrificed by tribesmen. They also help others along the way – reuniting a friendly pair of trolls, saving a man attempting suicide, and aiding an inventor.Įventually they reach a giant's castle and free a badly injured griffin who helps them before succumbing to its injuries. The brothers embark on their journey through the village, hills and mountains, while facing challenges like the local bully, a farmer's aggressive dog, and deadly wolves. His elder brother, Naia, calls him to help their ill father reach the village's doctor, who in turn tells them the only way to save him is by collecting the waters from the Tree of Life. The story begins with a boy named Naiee paying his respects at the tombstone of his dead mother, who drowned at sea while he remained unable to save her. All of the in-game dialogue is spoken in a fictional language, thus the story is conveyed through actions, gestures and expressions. Should either brother fall from a great height or get injured, the game restarts at a recent checkpoint. The player progresses by manipulating the two brothers at the same time to complete various puzzles, often requiring the player to manipulate both brothers to perform differing functions (such as one distracting a hostile non-player character while the other makes their way around). The older brother is the stronger of the two and can pull levers or boost his younger brother to higher spaces, while the younger one can pass between narrow bars. The controller triggers also cause the respective brother to interact with the game world, such as talking to a non-player character or grabbing onto a ledge or object.

The brothers are moved individually by two thumbsticks on the controller. Brothers is presented from a third-person view overlooking the two brothers.
