You character in Abzu is an unnamed, silent diver. Their identity and purpose are slowly revealed through environmental clues and interactions with ancient technology. The diver's design is minimalist, emphasizing their connection to the ocean rather than individual traits.

The diver's abilities are fixed: they can swim, boost, interact, call, and meditate. There are no upgrades or skill trees. The focus is on the player's journey of discovery and their interaction with the world, rather than the diver's personal development.