FNF Another Brother is a mod for Friday Night Funkin' designed by MaxDesignPro, featuring the fan-made character Oxaya. The mod introduces a darker, more narrative-driven experience as it delves into the life of Oxaya, a character who silently endures immense inner torment. His suffering is hidden from everyone, forcing him to struggle in isolation. The story gains a sinister twist when Jimmy, a young boy who has been warned to avoid the basement due to rumors of a lurking monster, succumbs to curiosity one eerie night. The mod explores deep emotional themes while delivering a chilling atmosphere that sets it apart from typical FNF mods.

In terms of gameplay, FNF Another Brother follows the rhythmic mechanics of Friday Night Funkin', but with added depth through its storyline. Players engage in musical battles against Oxaya, with each note playing a part in revealing more about his tragic backstory. The eerie soundtrack, including tracks like "Me and you alone in the cold," sets the tone for the unsettling narrative. As players progress, they face decisions that lead to two different endings, depending on how often they seek help. The mod also references other popular FNF mods such as FNF Funk Space vs. Omori and FNF vs. Lacey's Dream, creating a unique blend of storytelling and intense musical gameplay.