Harpoon paths, the gun roster, suits and tanks — and the community tier list.
▲ Steam screenshot — Boss fights: the residents of the hole do not negotiate
Harpoon upgrade tree (the mainline weapon)
Weapon
Source
Trait
Note
Old Reliable
Starting gear
Base
Every first coin came through it. Upgrading it is never shameful
Harpoon II
Foundry, early
+DMG, pierces mid fish
Best value tier
Trident
Mid-story
Area damage
King of schools (jacks: one throw, one menu)
Electro Harpoon
Deep story
Paralyze + DMG
Deep standard: paralysis stops the big ones from thrashing
Legendary Harpoon
Post-achievements
Top of everything
Peak stats, peak weight — tight-pocket days may leave it home
The gun roster (sidearms)
Gun
Unlock
Trait
Note
Net Launcher
Early
Capture unharmed
Live fish sell ×1.5. The economist's soulmate
Rifle
Mid
High direct DMG
Boss mainstay; overkill on weekdays
Tranquilizer
Mid
Harmless capture
Rarity preservation: zero wounds = top price
DLG Deep Gun
Deep story
Deep bonus DMG
Situational king; swap it out above 40m
Jungle Blowdart
DLC
Silent capture
River-only: spook the school and the school is gone
Community tier list (re-voted post-DLC, 2,140 ballots)
Tier
Members
Note
S
Net Launcher (economy) / Legendary Harpoon (power)
Two S-ranks in two dimensions — this game has no single answer
A
Trident / Tranquilizer
Domain champions: schools and pristine captures
B
Electro Harpoon / DLG
Situational, irreplaceable in their situations
C
Rifle
Fine numbers, but "comfort" sank it
Easter egg
Old Reliable
Power F, sentiment S. For the all-achievement memorial run
🗳 Top-voted ballot note: "I voted Old Reliable, because floor-45 of the beginner thread said it carried their first twenty days." Tier lists are for data people — the real stat in this game is familiarity.
Gear priority (the foundry order)
Order
Upgrade
Why
1
O2 tank upgrade
Depth = menu = money. Always first
2
Carry capacity
The second budget. Enough air but full pockets = a wasted dive
3
Pressure suit
The ticket to the deep
4
Swim speed
Good, but the first three are not cheap either
5
Drone
Auto-haul — the mid-game hand liberation
6
Cosmetics
Bancho-hat priority is yours to decide; this site does not judge
