How to Start the Divine Hunter Quest in Fisch (February 2026) Complete Guide
If you’re hunting for the rarest fish in Fisch and want exclusive cosmetic rewards, you absolutely need to know about…
If you’ve been grinding Escape Tsunami For Brainrots, you know that feeling when your base is completely full and you’ve got rare brainrots sitting in your inventory with nowhere to place them. I’ve been there too many times, watching potential millions per second slip away because I didn’t prioritize base upgrades correctly. After spending countless hours testing different progression strategies and analyzing what actually works, I’ve developed a complete understanding of how base upgrades, slot expansion, and floor unlocking really function in this game.
The base upgrade system in Escape Tsunami For Brainrots is more complex than most players realize. It’s not just about clicking a button and getting more space. There’s a strategic timing element, a cost scaling system that can drain your resources if you’re not careful, and an interaction with rebirth mechanics that most guides completely miss. In this comprehensive guide, I’m going to walk you through everything you need to know about upgrading your base, increasing slots, managing costs, and maximizing your money generation potential.
| Upgrade Aspect | Details |
|---|---|
| Location | Signboard outside your base entrance |
| Action Required | Walk up and click the signboard |
| Slots Per Upgrade | 1 slot added per upgrade |
| Floor Expansion | Every 10 slots unlocks a new floor |
| Cost Scaling | Increases exponentially (millions to trillions) |
| What You Keep | Base layout, placed brainrots, all slots |
| What Resets | Nothing (base is permanent) |
Having more brainrots in your base means exponentially more passive income in Escape Tsunami For Brainrots. The base upgrade system allows you to continuously expand your earning potential, but you need to understand the mechanics to avoid wasting precious currency. Let me break down the exact process and strategy you need to follow.
The base upgrade system happens in-world through a physical signboard, not through any menu interface. This is important because many new players waste time looking through UI menus when the upgrade mechanism is right outside their base.
Step 1: Locate the Upgrade Signboard
Walk outside your base entrance and look for the signboard that’s positioned directly in front of your base structure. The signboard displays your current base upgrade level and the cost for the next slot. You’ll see it clearly marked with upgrade information. Get close enough for the interaction prompt to appear on your screen.
Step 2: Check Your Currency Balance
Before clicking, make sure you have enough money for the upgrade. The game won’t let you purchase if you’re short, and there’s nothing more frustrating than grinding for an hour only to realize you’re still 100 million short of your next slot. Your current money multiplier is displayed right next to the Upgrade Base signboard, which helps you calculate how quickly you can earn the required amount.
Step 3: Click the Signboard to Upgrade
When you’re ready and have sufficient funds, click on the signboard. The game will immediately deduct the cost and add one new slot to your base. You can place a brainrot in that slot right away. The upgrade happens instantly with no cooldown or waiting period.
Step 4: Place Your Brainrots Strategically
After each upgrade, prioritize placing your highest-rarity and mutated brainrots in the new slots. Don’t just throw any random Common brainrot in there. The whole point of expanding is to increase your money-per-second generation, which only happens when you fill slots with strong earners.
Every ten slots you unlock triggers a floor expansion, which physically adds a new level to your base structure. This isn’t just cosmetic. Each new floor represents a significant milestone in your progression and shows other players that you’re serious about the grind.
Here’s how the floor system works:
The floor expansion happens automatically when you purchase your 11th, 21st, 31st slot, etc. You don’t need to do anything special. The game recognizes the milestone and upgrades your base structure instantly. This visual progression is satisfying and gives you clear goals to work toward.
One of the biggest challenges in Escape Tsunami For Brainrots is understanding the cost scaling for base upgrades. The prices increase exponentially, and without proper planning, you can easily hit a wall where upgrades become unaffordable for days of grinding. I’ve compiled the complete cost breakdown so you can plan your progression efficiently.
| Slot Number | Upgrade Cost | Cumulative Total | Floor |
|---|---|---|---|
| 1-10 | Free (Starter) | Free | 1st Floor |
| 11 | 1 Million | 1M | 2nd Floor Start |
| 12 | 10 Million | 11M | 2nd Floor |
| 13 | 25 Million | 36M | 2nd Floor |
| 14 | 50 Million | 86M | 2nd Floor |
| 15 | 100 Million | 186M | 2nd Floor |
| 16 | 250 Million | 436M | 2nd Floor |
| 17 | 500 Million | 936M | 2nd Floor |
| 18 | 750 Million | 1.686B | 2nd Floor |
| 19 | 1 Billion | 2.686B | 2nd Floor |
| 20 | 2.5 Billion | 5.186B | 2nd Floor |
| 21 | 5 Billion | 10.186B | 3rd Floor Start |
| 22 | 7.5 Billion | 17.686B | 3rd Floor |
| 23 | 10 Billion | 27.686B | 3rd Floor |
| 24 | 12.5 Billion | 40.186B | 3rd Floor |
| 25 | 25 Billion | 65.186B | 3rd Floor |
| 26 | 50 Billion | 115.186B | 3rd Floor |
| 27 | 100 Billion | 215.186B | 3rd Floor |
| 28 | 250 Billion | 465.186B | 3rd Floor |
| 29 | 500 Billion | 965.186B | 3rd Floor |
| 30 | 750 Billion | 1.715T | 3rd Floor |
| 31 | 1 Trillion | 2.715T | 4th Floor Start |
The cost scaling follows an aggressive exponential curve that accelerates dramatically after slot 20. Here’s what you need to understand:
Early Game (Slots 11-15): Costs range from 1M to 100M. These are relatively affordable and you should purchase them quickly as you progress. Don’t overthink these upgrades.
Mid Game (Slots 16-23): Costs jump from 250M to 10B. This is where strategic planning becomes critical. You need to balance base upgrades with brainrot upgrades and speed purchases.
Late Game (Slots 24-31+): Costs exceed 10B and reach into the trillions. At this stage, each upgrade requires significant grinding or multiple rebirth multipliers to afford comfortably.
The cumulative cost to reach 31 slots exceeds 2.7 trillion. This means you absolutely must optimize your rebirth timing and brainrot quality to progress efficiently through the higher slot tiers.
This is the question that separates efficient players from those who get stuck grinding for weeks. Every dollar you spend on a base slot is a dollar not spent on upgrading your existing brainrots, buying speed, or purchasing carry capacity. The key is understanding when each investment gives you the best return.
Your money flows into four main categories:
The mistake most players make is treating base upgrades as the top priority. They spam purchase slots as soon as they can afford them, ending up with 20+ slots filled with weak Common and Uncommon brainrots that barely generate any income. Meanwhile, they’re sitting on 2-3 Legendary or Secret brainrots that are severely under-leveled because all their cash went into base expansion.
Here’s the framework I use to decide where my money goes:
Prioritize Brainrot Upgrades When:
Prioritize Base Upgrades When:
The 70-20-10 Spending Rule
Based on extensive testing, I recommend this spending distribution for most progression stages:
Adjust these percentages based on your specific situation, but this ratio prevents the common trap of over-expanding your base before you have strong earners to fill it.
Absolutely yes, but with strategic timing. Base upgrades are essential for long-term progression and money scaling, but they’re not something you should blindly purchase whenever you can afford them. Let me explain why they’re valuable and when to pull the trigger.
Reason #1: Compound Money Generation
Every additional slot filled with a strong brainrot creates a compounding effect on your total income. If you have 10 slots generating 100M/second each, that’s 1B/second total. Add 5 more slots with similar quality, and you’re now at 1.5B/second. That 50% increase in income accelerates everything else in the game.
Reason #2: No Replacement Pressure
Without adequate slots, you’re constantly forced to replace older brainrots with newer ones. This wastes the levels you put into the replaced brainrot and creates inefficiency. More slots mean you can keep your strong legacy brainrots while adding new ones.
Reason #3: Synergy with Rebirth System
The rebirth mechanic resets your speed but keeps your base and all placed brainrots intact. This means every slot you unlock is a permanent investment that carries through every rebirth, multiplying in value as your money multiplier increases.
Reason #4: Offline Earning Scaling
Escape Tsunami For Brainrots allows offline earning, meaning your brainrots continue generating money even when you’re not playing. More slots with more brainrots means significantly higher offline income, which speeds up progression when you return to the game.
There are specific situations where upgrading your base is actually counterproductive:
Skip Base Upgrades If:
The worst mistake is expanding your base capacity when you don’t have the throughput to fill it. You end up with tons of empty slots, wasted currency, and slower progression.
Now that you understand the basics, let me share the advanced strategies that separate top players from average ones.
Your base upgrades should coordinate with your speed milestones and rebirth timing. Here’s the optimal sequence:
Don’t just fill your base with any brainrot you find. Follow this priority system:
Tier 1 Priority: Celestial, Secret (especially mutated versions) Tier 2 Priority: Mythic, Legendary (especially mutated versions) Tier 3 Priority: Epic (mutated only) Never Place: Common, Uncommon, non-mutated Rare
If you have an empty slot but only Common brainrots available, leave the slot empty and wait for your next good run. A Common brainrot generates so little income that it’s not worth the slot space.
I use specific money milestones to trigger base expansions:
These milestones ensure you’re expanding at a pace your income can support without causing progression bottlenecks.
Here’s a powerful technique most players miss: Right before rebirth, spend almost all your money on brainrot upgrades (not base slots). After rebirth, your multiplied income makes slot purchases much cheaper relative to your earning power. This accelerates your base expansion significantly.
Example Timeline:
The rebirth system is critical to understand because it fundamentally changes how you should approach base upgrades. Many players don’t realize that base upgrades are actually one of the BEST investments specifically because of how rebirth works.
Rebirth Resets:
Rebirth Keeps (Permanent):
This is huge. Your base is a permanent investment that survives every rebirth and benefits from the increased money multiplier you gain.
| Rebirth Level | Speed Required | Money Multiplier |
|---|---|---|
| 1 | 40 | 1.5x |
| 2 | 50 | 2x |
| 3 | 60 | 2.5x |
| 4 | 70 | 3x |
| 5 | 80 | 3.5x |
| 6 | 90 | 4x |
| 7 | 100 | 4.5x |
| 8 | 110 | 5x |
| 9 | 120 | 5.5x |
| 10 | 130 | 6x |
| 11 | 140 | 6.5x |
| 12 | 150 | 7x |
| 13 | 160 | 7.5x |
| 14 | 170 | 8x |
| 15 | 180 | 8.5x |
| 16 | 190 | 9x |
| 17 | 200 | 9.5x |
| 18 | 210 | 10x |
| 19 | 220 | 10.5x |
| 20 | 230 | 11x |
Let’s say you have a base with 20 slots, each holding brainrots averaging 500M per second total. That’s 10B/second at 3x multiplier (Rebirth 4).
After completing Rebirth 10 (6x multiplier):
This is why base slots are such a powerful investment. Every slot you unlock becomes twice as valuable with each doubling of your money multiplier through rebirths.
Rebirth Timing Strategy:
Here’s something most guides completely ignore: Your base capacity planning should directly correlate with your speed level and wave survival skills. There’s no point having 30 base slots if you can only safely reach Common and Uncommon zones because you lack speed.
Understanding which zones you can safely access is critical for base planning:
| Speed Range | Accessible Zones | Brainrot Rarities | Recommended Base Slots |
|---|---|---|---|
| 0-20 | Common Area (0-50m) | Common, Uncommon | 10-12 slots |
| 20-50 | Uncommon Area (50-150m) | Uncommon, Rare, Epic | 12-17 slots |
| 50-100 | Rare/Epic Area (150-400m) | Rare, Epic, Legendary | 17-23 slots |
| 100-140 | Legendary/Mythic (400-600m) | Epic, Legendary, Mythic | 23-28 slots |
| 140+ | Secret/Celestial (600m+) | Mythic, Secret, Celestial | 28+ slots |
Here’s the strategy I follow:
Phase 1: Speed Before Slots (0-40 Speed)
Phase 2: Balanced Growth (40-100 Speed)
Phase 3: Base Expansion Focus (100+ Speed)
This phased approach ensures your base capacity grows in sync with your ability to acquire quality brainrots to fill it.
More base slots are useless if you can’t efficiently fill them. This is where carry capacity becomes crucial. The carry capacity system determines how many brainrots you can hold simultaneously during a single run.
By default, you can only carry 1 brainrot per run. This is extremely inefficient for base filling. Here’s my recommended carry progression:
Carry Level 1 (1 brainrot): Starter capacity, adequate for early learning Carry Level 2 (2 brainrots): Buy this immediately. Cost is minimal, value is huge Carry Level 3 (3 brainrots): Purchase once you can safely reach Epic zones (Speed 50+) Carry Level 4+ (4+ brainrots): Only if you have high survival rate (80%+) and can reach Secret zones
Higher carry capacity multiplies both your gains and your losses:
Benefits:
Risks:
My Recommendation: Stick with 2-3 carry capacity until you have very consistent survival rate. I see too many players buy 5-6 carry capacity, then constantly die and lose multiple Secret brainrots per run. That’s devastating for progression.
Use this timing:
Remember: Carry capacity upgrade costs are permanent, but the risk of death is always present. It’s better to make 10 successful 2-brainrot runs than 3 successful and 2 failed 5-brainrot runs.
I’ve made every mistake in the book while learning this system. Let me save you from the same pain by highlighting the most damaging errors I see players make repeatedly.
The Problem: Players spam-buy base slots the moment they can afford them, depleting their cash reserves completely.
Why It Hurts: You end up with 20+ slots but can’t afford to upgrade the brainrots you place in them. This creates a base full of weak earners generating minimal income.
The Fix: Never spend more than 20% of your current cash on a single base upgrade. Save the rest for brainrot level upgrades. If you can’t follow this rule, don’t buy the slot yet.
The Problem: Players place Common and Uncommon brainrots in newly unlocked slots just to “fill them up.”
Why It Hurts: These weak brainrots generate negligible income compared to Epic+ tiers. They waste slots that could hold high-value earners.
The Fix: Leave slots empty until you acquire Rare or better brainrots. An empty slot is better than a slot occupied by garbage. Focus your runs on reaching better zones instead of collecting whatever’s nearby.
The Problem: Players treat all brainrots of the same tier equally, ignoring mutations.
Why It Hurts: Mutated brainrots (Electric, Diamond, Gold, Blood) earn 2-5x more than their normal counterparts. Placing a normal Secret when you could wait for a mutated one is a huge waste.
The Fix: During Admin Abuse events and high-value runs, specifically target mutated brainrots. Replace normal versions in your base with mutated ones whenever possible.
The Problem: Players delay rebirth to “save up money” or do it too early without proper base foundation.
Why It Hurts: Delaying rebirth means slower income growth. Doing it too early means insufficient base to capitalize on the multiplier.
The Fix: Rebirth as soon as you hit the speed requirement AND have at least 15 slots filled with Epic+ brainrots. This ensures maximum benefit from the multiplier.
The Problem: New players dump money into base expansion without first buying enough speed to reach better zones.
Why It Hurts: You end up with 20 slots filled with Common/Uncommon brainrots earning pennies because you can’t safely reach Epic+ zones.
The Fix: Prioritize speed upgrades until you can reach at least the Epic zone comfortably. Only then start aggressive base expansion.
After mastering the base upgrade system, here are the advanced techniques I use to extract maximum value:
Keep 1-2 slots permanently empty even when you could fill them. This gives you flexibility to immediately place high-value brainrots when you find them without having to replace anything. It’s especially valuable during Admin Abuse events when Celestials spawn rapidly.
Organize your base by quality tiers:
This organization helps you quickly identify which brainrots to replace when you find better ones.
Immediately after rebirth, use ALL your money on speed upgrades until you can reach Secret zones again. Only then start repurchasing base slots. This minimizes the “slow period” after rebirth and gets you back to high income quickly.
Before Admin Abuse events (typically Saturdays, 5 PM UTC), ensure you have 3-5 empty slots and at least 2-3 carry capacity. This lets you maximize the event by rapidly collecting multiple Celestial and mutated brainrots.
Before buying a slot, calculate the payback period:
Formula: Slot Cost ÷ (Expected Brainrot Money/Second × 3600 × 24) = Days to Break Even
Example:
If payback exceeds 5 days, delay the purchase and upgrade existing brainrots instead.
You should pause base upgrades once the next slot cost exceeds what your current brainrots can generate in 3-5 days of playtime. At that point, focus on upgrading your existing brainrots and completing rebirths to increase your money multiplier. Once your income increases, you can resume base expansion. There’s no permanent “stop point” – it’s always about balancing cost versus earning power.
No, base upgrades only add more slots for placing brainrots. The slots themselves generate zero income. You must fill those slots with brainrots to increase money per second. However, more slots means more brainrots, which means higher total income. The key is filling new slots with high-quality Legendary, Mythic, Secret, or Celestial brainrots rather than low-tier Commons or Uncommons.
Currently, there’s no confirmed maximum slot limit in the game. Players have reported reaching 40+ slots, and the upgrade system continues functioning beyond that. The practical limit is determined by cost scaling – eventually, slot prices reach the quadrillions and become extremely difficult to afford without maxed rebirth multipliers. Most players comfortably operate with 25-35 slots.
Your base structure, all unlocked slots, and every brainrot placed in those slots remain completely intact when you rebirth. Only your Speed upgrades reset to zero. This makes base expansion one of the best permanent investments in the game since it survives every rebirth and benefits from the increased money multiplier you gain.
Buy major slot expansions AFTER rebirth. The increased money multiplier makes slot costs relatively cheaper compared to your earning power. Before rebirth, focus your currency on maxing out your best brainrot levels. This way, you enter the next rebirth cycle with strong earners that immediately benefit from the multiplier, giving you more cash to buy slots quickly.
Only place brainrots that are Rare tier or higher. Prioritize mutated versions (Electric, Diamond, Gold, Blood) over normal versions. If you have a choice between a normal Legendary and a mutated Epic, choose the mutated Epic. Check the money-per-second stat – if it’s generating less than 100K/second at level 1, it’s probably not worth a permanent slot.
Purchase carry capacity upgrades to 2-3 brainrots per run, focus your grinding during Admin Abuse events (Saturdays 5 PM UTC), and target Secret/Celestial zones once you have 140+ speed. Avoid wasting time collecting Common/Uncommon brainrots. Make focused runs specifically for brainrot collection rather than trying to level up or explore.
No, base slots are permanent once purchased. Death only makes you lose brainrots you’re currently carrying on the track. Any brainrots already placed in your base slots are completely safe and continue generating income even while you’re dead and respawning.
To reach 30 slots, you need approximately 1.715 trillion cumulative money. However, you don’t need this all at once. You purchase slots incrementally, and your earning power increases as you add more brainrots. With proper rebirth timing and quality brainrots, reaching 30 slots is achievable within 40-60 hours of focused gameplay.
Yes, significantly. Every slot you add increases your total base earning power, which directly impacts how much money you earn while offline. If your base generates 10B/second, you’ll earn 360B during 10 hours offline. Add 5 more quality slots, and that offline earning might jump to 500B. This makes base expansion crucial for players who can’t grind constantly.
