Subnautica: Below Zero Tier List — Current Rankings

This Subnautica: Below Zero tier list ranks every major option by overall effectiveness. Rankings factor in damage output, survivability, versatility, gear requirements, and how well each option scales.

Tier definitions: S = best in class, always a strong pick. A = strong and competitive, minor weaknesses. B = solid but clearly outperformed in most situations. C = viable only for players who enjoy the playstyle.

Builds Rankings

Detailed Builds Analysis

Deep Explorer (S-Tier)

Focus on reaching maximum depth with upgraded Seatruck (depth modules) and Prawn Suit. The deepest biomes contain the most valuable story content and resources. Depth Module MK3 reaches 900m+ on the Seatruck and 1300m on the Prawn Suit.

Best with: Seatruck with Depth Module MK3, Prawn Suit with Drill Arm, Rebreather Stat focus: Depth rating, oxygen capacity, vehicle power

Base Builder (A-Tier)

Build elaborate underwater and surface bases with full amenities. Below Zero's building system adds glass corridors, observatories, and land-based modules. Thermal plant placement near heat vents provides unlimited power. The Large Room module enables expansive interior designs.

Best with: Habitat Builder, Thermal Plant, Large Room, Multipurpose Room, Nuclear Reactor Stat focus: Hull integrity, power generation, heating

Speedrunner (B-Tier)

Below Zero can be completed in under 2 hours by beelining to key locations. The Seaglide carries you through early game, and memorized blueprint locations skip exploration. The Snowfox hoverbike speeds up land sections. Story-critical items have fixed locations.

Best with: Seaglide, Snowfox, Rebreather, minimal base building Stat focus: Speed, route memorization, oxygen capacity

Completionist (A-Tier)

Scan every creature, find every PDA log, explore every cave, and build every item. Below Zero has a smaller world than the original, making 100% completion more feasible. The datapad trail tells a complete story when all logs are found.

Best with: Scanner, full vehicle suite, comprehensive base Stat focus: Exploration coverage, creature scanning, PDA log collection

Lore Hunter (A-Tier)

Focus on finding every PDA log, alien artifact, and story fragment. Below Zero's dual storyline (Robin/Al-An) has dozens of voice logs and data entries scattered across the world. Lore Hunters prioritize story locations over resource gathering.

Best with: Scanner, Seatruck (for mobility), PDA log tracking Stat focus: Story location knowledge, alien facility access, audio log collection

Equipment Rankings

Equipment Analysis

Survival Knife: Basic tool for harvesting coral, plants, and defending against small predators. Upgradeable to Thermoblade for fire damage and instant fish cooking. Essential for collecting crafting materials from flora and fauna.

Seatruck Perimeter Defense: A module that creates an electric pulse around the Seatruck, stunning and repelling aggressive creatures. Essential for traversing biomes with Chelicerate or Shadow Leviathans. Uses Seatruck power reserves.

Prawn Suit: An underwater mech suit with drill arms for mining Large Resource Deposits and grapple arms for traversal. Walks on the ocean floor and withstands deep pressure with upgrades. The Drill Arm mines 10x faster than the knife.

Spy Pengling: A deployable robotic penguin that scouts areas remotely through a camera feed. Use it to explore dangerous areas (Leviathan territories) without risking your character. Can fit through small spaces you can't.

Scanner: Scans creatures, plants, and fragments to add them to your PDA database and unlock blueprints. The most important tool in the game — scan everything you encounter. Blueprint fragments require scanning 2-3 pieces to complete the recipe.

Meta Analysis

The current meta in Subnautica: Below Zero centers on Seatruck modules and cold resistance. Builds that leverage both systems outperform those that focus on only one.

What's strong right now:

• Deep Explorer with Survival Knife is the benchmark. Everything else is measured against it.
• alien research builds are gaining ground as players find new synergies.
• Speedrunner remains essential for learning hard content.

What's underrated:

• Base Builder is consistently overlooked despite being the most flexible option.
• Prawn Suit offers excellent performance for its investment level.

What's overhyped:

• Pure Lore Hunter builds. High ceiling but the consistency isn't there for most players.

Quick Picks by Situation

For full build guides, see Subnautica: Below Zero builds. For progression help, check the walkthrough.