Upgrade Priority
Optimal order for upgrading tubes, guns, and equipment.
📖 8 min read•Intermediate•Updated 2026-03-15
💡 Quick Tip: Alternate between tube and gun upgrades. Each one unlocks new content and earning potential.
📈Recommended Upgrade Order
- Wooden Gun ($150) — first upgrade, doubles DPS
- Pufferfish Tube ($2,850) — unlocks Ancient Sands biome
- Advanced Gun ($1,050) — massive DPS increase
- Anglerfish Tube ($8,000) — unlocks Crystal Caves
- Harpoon Gun ($3,500) — endgame DPS
- Abyssal Tube ($25,000) — unlocks The Abyss
- Plunger Gun ($15,000) — highest DPS in game
Each tube upgrade unlocks a new biome with higher-value fish. Prioritize tubes for income growth.
💰ROI Analysis
| Upgrade | Cost | Income Increase | Payback Time |
|---|---|---|---|
| Wooden Gun | $150 | +50% | ~10 min |
| Pufferfish Tube | $2,850 | +200% | ~30 min |
| Advanced Gun | $1,050 | +100% | ~15 min |
| Anglerfish Tube | $8,000 | +300% | ~45 min |
| Harpoon Gun | $3,500 | +150% | ~20 min |