Subnautica 2 – Aliens Explained: Who Are The Axum?

You’ll hear a lot about the mysterious Axum when you arrive on the planet of Proteus in Subnautica 2. Whoever they are, they’ve built a lot of things, but nobody seems to know what they were or where they’ve all gone. Like many sci-fi games before it (like Halo and Mass Effect), the Axum represent a precursor race of aliens who had amazing technology, but are now no more. Below, we’ll dive into everything we know about the Axum that we’ve gathered from in-game lore clues and beyond. The Axum are clearly going to be important to the Subnautica 2 adventure, during early access and long after, so let’s piece together every snippet of information and try to solve the mystery. Spoilers for Subnautica 2 lurk below. The Axum were (or perhaps still are) a sentient and intelligent race of aliens that called Proteus home. Whether or not Proteus was their original home, or a planet they colonized is up for debate, but the Axum seem to have settled there and build numerous underwater structures, such as the Power Plant.