Small but fearless, Fin is the emotional heart of the Sanctuary, whose mutation and mechanical rebirth forged him into something both resilient and brave. After the Atomic Heart Engine altered everything, Fin endured transformation, injury, and reconstruction, emerging stronger but forever changed.
His mechanical enhancements are not just upgrades—they are reminders of sacrifice and survival. In the Atomic Critters universe, Fin represents loyalty, courage, and the quiet strength required to stand back up when the world collapses around you.