From the Modification Station to the Moonpool, here’s exactly how to push past the 250-meter crush limit.
The Tadpole in Subnautica 2 starts with a crush depth of 250 meters—push past that without upgrades and you’ll watch your vehicle implode. Upgrading it is the only way to reach the volcanic vents, the Great Jaw, and the Alien Power Plant.
That means setting up a Modification Station, hunting down rare materials like Gold and Lithium, and crafting modules that boost depth and mobility. In this guide we’ll cover everything from base infrastructure to the upgrades that keep your Tadpole alive.
How to Build the Modification Station
You need a Modification Station to craft Tadpole upgrades. Scan it at the Research Outpost, northeast of the Alien Observatory—the scan fragment sits in the building’s second room.
Once scanned, use your Habitat Builder to construct it with 2x Titanium, 2x Celestine, and 2x Copper.
Setting Up Vehicle Support Infrastructure
The Moonpool is required: it houses the Vehicle Fabricator, which produces the Tadpole and its upgrade modules.
You also need a Tadpole Dock or Power Cell Terminal to recharge your vehicle’s power cell. Recharging is far more efficient than crafting new Power Cells from scratch.
Gathering Main Materials for Upgrades
Rare resources drive every meaningful upgrade. Here’s where to find them:
- Gold: Located in the volcanic vent region 450 meters east of the Lifepod. Used for Advanced Wiring Kits, which unlock Dedicated Cores and high-tier submarine technology.
- Lithium: Found around Tadpole Pens (300m east) or inside the Great Jaw (300m south). Process with Titanium to create Plasteel Ingots, required for structural upgrades.
- Conduit Crystals: Rare minerals near the Alien Power Plant, typically below 250 meters.
Conduit Crystals demand you push past the base depth limit—craft a depth upgrade first to safely extract them from deeper zones.
Understanding Tadpole Stats and Limitations
The unmodified Tadpole has a maximum crush depth of 250 meters. Venturing deeper causes immediate implosion, so increasing that limit must be your first priority.
The Scout Chassis upgrade improves strafing and dodging later on—important for avoiding predators like the Collector Leviathan.
Equipping the Best Upgrades
The following modules can be installed at the Vehicle Fabricator.
- Depth Upgrade Modules: Crafted at the Vehicle Fabricator. Each one extends crush depth so you can explore hazardous biomes.
- Scout Chassis: Boosts maneuverability, making it easier to dodge aggressive wildlife.
- Sonic Resonator: Fires deterrent shots from a safe distance to scare off hostile creatures.
- Dedicated Cores: High-tier components unlocked with Gold. Needed for advanced vehicle progression and endgame upgrades.
Mastering the Tadpole is just the start—base power management and resource farming in Subnautica 2 open up even deeper exploration. Over at Solo Jugadores we break down every main system so you’re never stuck.
