Final boss, the MOBY and the Rhizo (spoilers)
Quick answer
Jeb sells a new bait, and fishing with it starts the final boss, which has its own map. Beating it unlocks the MOBY rod and the Jeremy Wade difficulty. The MOBY is required for the Rhizo, a mythic fish in deep Lake water. Kingy hasn't reached the boss; these steps come from GONE Studios' 1.0 notes and the 1.0.1 menus.
Before you start
1
How the fight starts
2
What beating it unlocks
3
The Rhizo
You’re ready when…
Sources · 7Walkthrough · Official · checked 22 Oct 2026 · Research checked 22 Oct 2026
Kingy test run: Build 1.0.1 menus, lobby, intro and Journal ↗Kingy's own session in the retail game through Steam on Windows 11: menu label Build 1.0.1, Steam build 26083362, keyboard and mouse, solo on the Lake at Average Angler, October 20, 2026. Covered the main menu, save slots, Create Lobby, perks, lobby options, the intro, picking up a rod in the cabin on day 1 and every Journal page. Casting, the fishing minigame, the altar, traders, other maps, the boss and co-op were not played. Screenshots were captured from the game window during that session.Walkthrough ·
GONE FISHING 1.0 FULL RELEASE IS NOW LIVE!!! ↗1.0 notes: ending and final boss, the MOBY, Season 1.0 and the Rhizo, 8 trinkets from Clinket the Trader, Yeti rework, traps and the Fish Trap, hats, the musket, price and quota scaling, save encryption and the November 20 migration cutoff, leaderboard wipe, anti-cheat, Journal V2 and fixes.Official ·
Hotfix ↗Same-day fixes: legendary and mythic achievements now go to everyone in the lobby, trader textures on the final boss map, and the upgraded butcher table giving one heart instead of two.Official ·
Were talking YETI, were talking fixes ↗Post-launch fix list: bait can be unequipped again, the Yeti spawns on the Arctic, the Lake crocodile no longer throws players under the map, the final boss's whale nuke is always visible, item text no longer overlaps prices, the Journal works in all languages, and the Megalodon hat can be seen and selected.Official ·
BUFFS BUFFS BUFFS ↗Progression buffs and boss tuning: cheaper shop items and line, rod and sinker upgrades, better gambling odds, more Skeeter muskets, troll from day 2, a bigger boss eyeball hitbox, weaker rolling turtles, faster HP regen, Arctic spawn changes and fixes.Official ·
GONE Fishing 1.0 Preview! FULL RELEASE on OCTOBER 20th ↗Pre-launch overview of 1.0 content; says defeating the boss unlocks the MOBY and Jeremy Wade difficulty.Official ·
GONE Fishing global achievements ↗53 achievements, 24 of them hidden, with names, descriptions, Steam's internal achievement names and global unlock rates. The achievements guide quotes rates read on October 21, 2026 at about 04:45 UTC; the final-boss and rare-fish guides quote release-day rates.Official ·