Upgrades and Perks
A careful framework for submarine, tool, and skill-tree choices.
Shelldiver Skill Tree Guide: Choose Perks for Your Goal
Use Shelldiver's confirmed branching skill-tree concept to choose a goal, while keeping undocumented perk effects, costs, and tiers explicit.
Last updated: 9/2/2026
Shelldiver Submarine and Tool Upgrades: Plan Your Dive
Plan Shelldiver submarine and tool priorities using confirmed upgrade categories, while keeping hidden costs, effects, and order clearly unknown.
Last updated: 9/2/2026