How to Fish Casino Guide: Slot Machine, Roulette, GOLD GOLD GOLD & All In
Updated 2026-08-26
How the slot machine and roulette work in How to Fish, how to unlock the GOLD GOLD GOLD and All In achievements without going broke, and when gambling is actually worth it.
Quick answer: two machines, two achievements
How to Fish has two gambling systems. The slot machine is tied to the GOLD GOLD GOLD achievement, which the Steam achievement description defines as getting a Legendary skin as your slots reward. The roulette table is tied to All In, defined as betting on green and winning. Both are pure RNG — no community testing has found any timing, pattern, or input that changes the odds. The only thing you control is what you put at risk, and that is where most players go wrong.
GOLD GOLD GOLD: the slot machine grind
The achievement only asks for one Legendary skin from the slots, so the efficient approach is volume with disposable money, not one dramatic spin. Feed the machine with funds you can fully afford to lose and stop the moment the achievement registers — there is no second reward tier that justifies continuing. Third-party achievement trackers place the unlock rate roughly in the 44–52% range depending on the tracker, which tells you most players get it incidentally while playing rather than by grinding. If you are chasing it deliberately, do it after your core gear is funded, never before.
All In: winning a green bet at roulette
The Steam description is literal: take part in the roulette, bet on green, win. Community guides converge on the same low-risk method — bet one cheap, replaceable creature or a small stake on green and rebet until it hits. Green is the rare outcome, so expect a string of losses and size each bet so the string cannot hurt you. Trackers disagree on the exact unlock rate (figures between roughly 7% and 17% appear across third-party trackers, measured at different times), but both agree it is among the less-common achievements. Never bet a boss trophy, a quest hand-in item, or a drip creature you still need for Fishipedia: the roulette can wipe the stake entirely, and some items cannot be re-earned quickly.
When gambling is worth it at all
Guides aimed at new players are blunt about this: fund your equipment first. Roulette can produce a large payout, but it can also wipe out an expensive catch instantly, and the expected value does not rescue an under-geared run. The legitimate use cases are narrow: finishing the two gambling achievements with expendable stakes, and late-game money experiments after all weapons and boat upgrades are bought. If you are still choosing between a shotgun and rent-level lures, the casino is a trap, not a shortcut. Our money guide covers the reliable income loops that out-earn gambling without the variance.
Roulette multipliers and the Rich! Millionaire connection
Third-party achievement guides describe roulette multipliers as one ingredient in extreme-value sales: a high-value catch such as a Goblin Shark, combined with cooking and trick-shot multipliers, can push a single sale toward the $100,000 needed for Rich! Millionaire. Treat this as an optional optimization for that specific achievement, documented in our Rich! Millionaire guide — not as a general money strategy. The safe version of the plan works without gambling at all.
Known issues and version notes
Patch history includes a 4K-related slot machine skin display fix. If a slots reward appears blank on a high-resolution display, update to the current build and test at 1920x1080 before assuming the reward was lost — the unlock should still exist in your appearances. As with everything on this site, if your build behaves differently, the in-game result on the current patch outranks any written guide, including this one.
How to apply this guide safely
Begin with “Quick answer: two machines, two achievements” and compare it with the objective, inventory, and controls shown by your installed build. Do not change several variables at once. If the guide concerns progression, complete one dialogue or hand-in and confirm the objective changed before sailing away. If it concerns combat, test the control or equipment choice on an ordinary encounter before spending a boss trigger. If it concerns troubleshooting, preserve the save and start with reversible checks such as restarting the session and verifying files.
Keep a short run record with the game version, solo or co-op state, host identity, starting objective, relevant equipment, steps taken, and outcome. Physics, network state, and retail patches can make two attempts look different even when both players describe them honestly. A controlled record lets you identify which condition changed. It also gives the developer a useful reproduction if the result points to a defect rather than a missed quest step.
Evidence and version check
This article uses Destructoid — All achievements in How to Fish and how to complete them, howtofish.buzz — All 28 How to Fish Achievements, G2A — How to Fish Beginner Guide (gambling FAQ). Official store text and developer announcements establish supported features and broad progression. Steam achievement wording establishes that a named action exists, but it does not prove an exact coordinate, probability, price, damage value, or hidden timer. Community discussions can reveal a repeated problem and possible workaround, but one reply is not treated as a universal mechanic. Where evidence stops, the guide uses cautious testing steps instead of inventing a precise answer.
Before relying on an older route, check the Steam news and discussion dates against the updated date at the top of this page. Prefer the current in-game objective when it conflicts with a video or forum post. Avoid unknown executables, replacement saves, cheats, or destructive file edits offered as shortcuts. A legitimate workaround should be explainable, reversible, and testable without surrendering account credentials or deleting the only known-good save.
Completion check
Finish with “Known issues and version notes,” then verify the result in the system that matters: quest log for progression, inventory for items, Steam for achievements, or a repeatable symptom check for a technical fix. Do not treat a visual animation alone as proof that the save registered the event. Wait for a normal transition and inspect the state before selling items, changing hosts, or starting another objective. If the result differs from this page, send the URL, build number, exact steps, and observed result through the contact page; that evidence is how we correct guides without turning uncertain reports into false facts.
Sources & Evidence
Claims are backed by the following sources. Unknowns are marked explicitly.
- Destructoid — All achievements in How to Fish and how to complete themThird-party / Tier 4Checked 2026-08-26
- howtofish.buzz — All 28 How to Fish AchievementsThird-party / Tier 4Checked 2026-08-26
- G2A — How to Fish Beginner Guide (gambling FAQ)Third-party / Tier 4Checked 2026-08-26