Getting a depth module in Subnautica 2 increases your tadpole submarine 's depth resistance and lets you explore further without having to worry about finding oxygen spots. However, you'll reach the tadpole's limits before you find the module, and if you're not looking around, it's possible to miss this essential upgrade. You'll need some new materials to craft the device needed to make the mod, though, so it'll take a little bit of gathering before you can outfit your tadpole. Below, we show you where to find the depth module tadpole upgrade in Subnautica 2 and how to craft it. [ Ed. note : Before you dive in, be sure to open the character menu and enable all landmark signals . This will make it easier to spot the locations mentioned in this guide.] Where to find the depth module tadpole upgrade in Subnautica 2 Graphic: Josh Broadwell for Polygon | Images: Unknown Worlds/Krafton via Polygon The depth module blueprint is near Ruby's second blackbox , though not by the actual box.…