In the Roblox tycoon simulation Steal a Fish (developed by the group MY FISH FRIEND), earning money centers on acquiring aquatic creatures from the central river conveyor, storing them in your base hut to generate passive cash per second, and leveraging percentage-scaling fish alongside rebirth multipliers. Whether you purchase budget starters or steal high-value specimens from unguarded bases, understanding the mathematical jump between flat-income earners and dynamic multiplier fish is the fastest path to reaching trillions and quadrillions in cash.
Core Income Loop: River Buying and Base Stashing
Every server features a central waterway where fish swim out of a tunnel and drift along the current toward a fishing boat at the end of the route. Once a fish reaches the boat, it despawns from the river.
To purchase a fish from the river, walk up to it and press the interact key (E). If you have enough in-game cash, the fish is bought and immediately travels to your base house, occupying an available floor slot.
Inside your base, every stashed fish continuously generates a fixed or percentage-based amount of money per second. To collect this cash, walk over the green collection buttons located on the floor of your house. If your slots are full, you can step up to any fish in your base and select the sell option to clear inventory room for higher-earning creatures.
Fish Rarities and Income Values
Creatures in Steal a Fish span multiple rarities, ranging from Common starters paying under $20 per second up to Deep and Abyss tiers that produce billions or trillions per second.
| Fish Name | Rarity | Purchase Cost | Money Generated Per Second |
|---|---|---|---|
| Sea Star | Common | $100 | $5/s |
| Salmon | Common | $125 | $6.25/s |
| Sea Horse | Common | $150 | $7.5/s |
| Tralalero | Common | $150 | $7.5/s |
| Jellyfish | Common | $200 | $10/s |
| Tung Sahur | Common | $200 | $10/s |
| Pufferfish | Common | $250 | $12.5/s |
| Turtle | Common | $350 | $17.5/s |
| Crab | Uncommon | $1,200 | $25/s |
| Blobfish | Rare | $10,000 | $90/s |
| Saw Shark | Epic | $350,000 | $1,450/s |
| Nuke Fish | Legendary | $2,750,000 | $5,900/s |
| Manta Ray | Legendary | $5,000,000 | $10,500/s |
| Blue Dragon | Mythic | $95,000,000 | $100,000/s |
| Loch Ness | Mythic | $100,000,000 | $111,000/s |
| Sea Eater | Cosmic | $1,000,000,000 | $510,000/s |
| Mutated El Gran Maja | Deep | $10,000,000,000 | $1,600,000/s |
| SCP | Deep | $50,000,000,000 | $6,940,000/s |
| Leviathan | Deep | $75,000,000,000 | $12,200,000/s |
| Deep Mutated Boss | Deep | $50,000,000,000,000 | $5,000,000,000/s |
How Scaling Percentage Fish Supercharge Income
Beyond flat earners, Steal a Fish features special Limited, Secret, Admin, and Event fish that do not have a set dollar-per-second payout. Instead, they produce a percentage scaling directly off your highest-earning flat-rate base fish.
Examples of percentage-based fish include:
- Demogorgon Worm, Evil Bloop, Udindun Eater, and Orcalero Eater: Generate 150% of your best fish.
- Hungry Deer: Secret fish that generates 150% of your best fish.
- Hungry Tung Tung: Secret fish that generates 120% to 130% of your best fish.
- Nightmare Blobfish: Secret fish that generates 90% of your best fish.
- Cthulhu: Event fish that generates 250% of your best fish.
- Chaos Cthulhu: Event fish that generates 300% of your best fish.
If your best base fish is a low-tier creature generating $1,000 per second, a 150% scaling fish only yields $1,500 per second. However, once you obtain a Deep-tier earner like the Deep Mutated Boss ($5,000,000,000/s), every single 150% scaling fish automatically jumps to producing $7.5 billion per second. Stacking multiple percentage fish around a single elite flat earner causes base income to jump exponentially.
Rebirth Requirements and Progression
Rebirthing increases your permanent earnings multiplier, boosts offline income, grants bonus walk speed, and extends your base force field duration. Unlike many tycoon games, rebirthing in Steal a Fish does not wipe your entire base. The game only removes the exact fish required to complete that specific rebirth tier, leaving the rest of your collected money-makers untouched.
| Rebirth Tier | Required Fish | Required Cash | Key Rewards Unlocked |
|---|---|---|---|
| Rebirth 1 | 1x Turtle | $500 | Money multiplier, offline income boost, +10s force field |
| Rebirth 2 | 1x Crab, 1x Tralalero | None listed | Walk speed boost, offline earnings, +10s force field |
| Rebirth 3 | 1x Blobfish, 2x Clownfish | $25,000 | Second base floor unlocked, +10s force field, higher income |
| Rebirth 4 | 1x Nuke Fish, 1x Saw Shark | None listed | +2 upper floor fish slots, walk speed boost, force field extension |
| Rebirth 5+ | Whales, Megalodons, or Mythics (varies) | $15,000,000+ | Higher multipliers, advanced weapon unlocks in tool store |
Focus on completing the early rebirths as fast as possible. Because early rebirths only consume common and uncommon creatures like the Turtle, Crab, and Blobfish, completing them immediately ramps up your cash production before you begin hunting high-value end-game fish.
Stealing Fish and Base Defense Tactics
Buying from the river is not the only way to obtain high-value fish. When cash is low, raiding other players' bases offers an immediate shortcut to high-tier income.
How to Steal from Rivals
- Monitor rival bases to spot an expired force field. The standard free base shield lasts for 60 seconds before dropping, unless the player has extended it via rebirths or paid passes.
- Run inside the open base and interact with the target's most valuable fish.
- Once picked up, carry the fish back to your own base hut. While carrying a stolen fish, your character suffers a heavy movement speed penalty, making you vulnerable to attacks.
- If you reach your base and deposit the fish without being knocked out, it permanently joins your collection and generates cash for you.
Defending Your Base
- Keep your force field active: Press the force field button inside your house to lock out intruders. Players can also purchase temporary 24-hour shields or permanent passes like the Intrusion Alarm (149 Robux) to safeguard their stash.
- Equip defensive tools: Visit the tool store or equip your slap glove (slot key 1) to strike intruders. Upgraded tools like the Silver Slap Glove, Flintlock, and RPG allow you to knock thieves away and force them to drop stolen fish.
- Look for Unstealable fish: Certain fish spawn with an "Unstealable" tag or aura (such as the group reward Epic Shark or specific mutation rolls like the 7.5% Unstealable mutation). Opponents cannot pick up or rob these fish even if your base shield drops.
Server Luck and Spawning Boosts
If you are hunting for specific rebirth fish or high-tier Deep and Cosmic spawns, several mechanics alter spawn pacing:
- 2x Fish Spawn ($500,000 in-game cash): Cuts the spawn delay between emerging fish in half for 1 minute.
- 2x Fish Speed ($100,000 in-game cash): Doubles the swimming movement speed of fish drifting down the river.
- Server Luck Multipliers: Can be boosted using Robux from 2x up to 99x luck, significantly increasing the probability of rare, Mythic, Cosmic, Deep, and Secret fish appearing along the river.
- River Spawn Timers: The top of the screen displays guaranteed countdown timers for upcoming Mythic, Cosmic, and Deep spawns (such as guaranteed Mythic every few minutes). Watch these timers to ensure you have sufficient cash on hand before the creature emerges.
Frequently Asked Questions (FAQ)
How do I collect the money my fish produce?
Step inside your base house and walk directly over the green floor buttons located next to your fish displays. The cash they have generated will instantly deposit into your total wallet.
Do I lose all my fish when I rebirth?
No. Rebirthing in Steal a Fish only removes the specific fish required for that rebirth stage. All other high-tier fish and money-makers in your base remain in your slots.
Why did a stolen fish disappear or fail to register?
If an opponent hits you with a slap glove, weapon, or tool while you are escaping, the stolen fish drops. Additionally, if the victim disconnects or rage-quits mid-theft, the robbery attempt can fail. Fish labeled with the "Unstealable" tag cannot be picked up by invaders under any circumstances.
How do I get the free Unstealable Epic Shark?
Like the game on Roblox and join the official MY FISH FRIEND developer group. You can then claim the free group gift inside the game lobby, which grants an Unstealable Epic Shark that continues generating money safely.
