How to Craft Improved Fins in Subnautica 2

Why It Matters

Faster movement shortens exploration time and reduces risk from hostile fauna, giving players a strategic edge in early progression. The upgrade also streamlines resource gathering, accelerating base development and overall game pacing.

Key Takeaways

• Improved fins located near Alien Ruins, pioneer platform, and deep chasm
• Blueprint needs basic fins, rubber, fiber, fiber mesh, conduit crystals
• Conduit crystals farmed from blue pillars east of Angel Comb
• Rubber and fibrous pulp harvested from lucifer rotsac plants
• Enable all landmark signals to simplify fin location scouting

Pulse Analysis

Subnautica 2 expands the survival‑crafting loop with deeper biomes and faster traversal tools. Among the most sought‑after upgrades are the improved fins, which boost swim speed and stamina, letting players cover the sprawling ocean map more efficiently. The new fins sit at the heart of the early‑game progression, bridging the gap between basic mobility and the high‑speed vehicles that appear later. Understanding where to locate the blueprint and how to assemble the parts can shave hours off a first‑playthrough.

The three fin caches are tucked near the Alien Ruins sector. The first pair rests on a lower ledge just south of the ruins; a short trek 230 meters east‑southeast leads to a second set perched on a pioneer platform atop a tall rock formation. A deeper dive to 260 meters reveals the third pair in an open crate beside a blue light across a chasm. Activating all landmark signals in the character menu highlights these points on the sonar, making the hunt straightforward for newcomers.

Crafting the improved fins requires the basic fin blueprint plus a modest resource mix: two rubber (harvested from lucifer rotsac plants), four fibers from fibrous pulp, a fiber mesh, and two conduit crystals. Conduit crystals are the most elusive component, spawning from glowing pillars near the Angel Comb east of the Alien Ruins. Once gathered, the fabricator assembles the parts into a sleek fin set that increases swim speed by roughly 30 percent. This upgrade not only accelerates resource gathering and base expansion but also reduces exposure to hostile fauna, underscoring why the fin guide has become a staple in the Subnautica 2 community.