The DLC, "Legacy of the First Blade, Shadow Heritage", was the subject of controversy and backlash from the LGBTQ+ community. At the end of the DLC, the player character was forced to be part of a heterosexual relationship, ending with the player character having a child with another character. Many players saw this as a disservice to the LGBTQ+ community, and Ubisoft going back on their commitment of diversity and inclusion within the game. Despite allowing the player to choose their sexuality through multiple romantic encounters throughout the game, the DLC gave no option to decline the relationship, forcing players to engage in the heterosexual relationship. Furthermore, completing this unlocked an achievement titled, "Growing Up". The developers apologized and released a patch for the DLC. In the patch, the ending is still the game, and a baby is born, but the player character is allowed to clarify that they choose to do so to "further their bloodline", and not for romantic reasons. The title of the achievement was also changed to "Blood of Leonidas".

Originally, Kassandra was meant to be a sole lead character, but the developers were pushed to add her brother, Alexios, as a secondary playable character.

At the top of an island in Pandora's Cove in Malis, there is a small circle of rocks referencing puzzles to find hidden Koroks found in The Legend of Zelda: Breath of the Wild.