How to Unlock the Tadpole Submarine in Subnautica 2

You're staring at the dark, murky water of Subnautica 2. You know the best loot sits way down there. But your current gear just won't cut it. You need a better ride.

The Tadpole is your ticket to the abyss. It's small, fast, and essential for deep-sea survival. Without it, you're basically just shark bait.

Honestly, getting one isn't easy. You have to hunt for parts and build a proper setup. Let's get you ready to dive.

Why you need this submarine right now

Survival games are all about reaching that next milestone. In this game, the Tadpole is that big jump. It isn't just a boat. It's a mobile home for your oxygen supply.

Early game gear limits how far you can swim. You'll hit a wall fast if you don't upgrade. The Tadpole breaks those barriers. It lets you reach the bottom of the map where the real treasures wait.

Think of it as your primary tool. You can't mine rare ores or reach the deep ruins without it. It changes the pace of the game entirely. Once you have it, the world opens up.

Hunting down those rare tadpole fragments

You need three Tadpole fragments to get the blueprint. These aren't just lying around in the open. You have to look for them near old ruins. Pioneers left them behind for a reason.

Start by heading 70 meters southwest of the Welcome Center. Look for ruins perched on a cliff edge. A fragment sits right below that cliff. It's easy to miss if you aren't looking down.

Next, head to the Tadpole Pens. You'll go there after you cure the Angel Comb. It's part of the story, so you can't miss it. Once inside, check the crate to the left of the main entrance.

There is one more piece in the moon pool. Grab it and you'll finally have the full recipe. Don't leave the area just yet, though. You need one more thing before you head back to base.

Find the desk near the submarine model. There is a blueprint crate there. It contains the moonpool design. You literally cannot build your sub without this room. Make sure you grab it before you swim away.

The nitty gritty of building your ride

Now you're back at your base. You need to build a moonpool first. Use your habitat builder to place it on the floor. This takes five titanium. It's cheap, but it takes up space.

Next, slap a vehicle fabricator on the edge of that moonpool. You need two titanium ingots, one copper ingot, and two glass for this. It's the terminal where you click "build" on the sub.

The crafting cost for the Tadpole is steep. You need two titanium ingots and one glass. You also need a system chip, which requires silver, copper, and quartz. It's a lot of grinding, but it's worth it.

Don't forget the power cell. It needs two batteries, strong acid, and salt. If you run out of juice in the deep, you're stuck. Always keep a spare cell in your inventory just in case.

What this means for your future dives

Having a submarine changes how you play. You stop worrying about air every ten seconds. You start looking for secrets instead. It turns the game from a stress test into an adventure.

You'll soon find that the ocean is much bigger than you thought. The Tadpole lets you ignore the surface. You can stay down there for hours. It's the ultimate freedom.

Just keep an eye on your energy levels. The deeper you go, the faster you drain power. Build a dock as soon as you can. It keeps your sub charged and ready for the next run.

Quick questions answered

Where do I find quartz for the glass?

Quartz is common on the sea floor near the starting areas. Look for shiny white crystals stuck to rocks.

Can I build the Tadpole without a moonpool?

No. You need the vehicle fabricator, which only attaches to the moonpool structure.

What if I run out of power deep down?

You'll have to swim back to your base or a surface station. Always carry a spare power cell in your bag.

Are there other submarines?

The Tadpole is the first one you get. There are bigger ones later, but this is your bread and butter.

Do I need special tools to find the fragments?

No, just your scanner. Make sure you have enough battery life in your scanner before you leave base.