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Sushi Station Guide - IdleOn

September 17, 2026

The Sushi Station is an area in World 7 that allows you to cook different tiers of Sushi by combining them together. There are over 60 different Sushi to craft, with each one giving a unique account-wide bonus to all your characters in IdleOn.

The Sushi Station is located in World 7: Sushi Perimeter and once unlocked, you can access it from Shimmerfin Grove hub next to the Research Desk.

You also need to have at least one point into the Research Grid Sushi Station Linguistics J3

Sushi Station upgrades are unlocked based on your Research skill level, so you'll also need to make sure you're working on that in order to get the most out of this mechanic.

Sushi Station Overview

Sushi Station Overview

Sushi can be cooked by clicking the Fuel Gauge Fire Icon shown on the right of the Sushi Station. In the beginning you can only craft Tier 1 Sushi.

To upgrade your Sushi to the next tier, you need two of the same Sushi tier and combine them together on the Sushi Station board.

Each unique Sushi tier gives a permanent account-wide bonus and a Knowledge Bonus that affects the Sushi Station. Your Knowledge Bonus can be levelled up by combining multiple copies of the same Sushi.

Fuel is generated over time and affected by several Sushi Station Upgrades that can increase the rate it generates at.

Sushi Bucks are generated over time based on the amount of Sushi you have on your Sushi Station board. You use Sushi Bucks to increase the level of Sushi Upgrades.

You adjust your Sushi Station Board by using the Oven Mitten icon; move tiles around to best accommodate your setup.

Sushi Tier Bonuses

Below you can find all the Sushi Tiers currently available in IdleOn.

Sushi Tier Description Knowledge Bonus
Sushi Fish Eggs
Fish Eggs
Tier 1 2x multiplier to Research EXP gain +% more Bucks generated
Sushi Eggroll
Eggroll
Tier 2 All Minehead upgrades are 30% cheaper +% bonus Knowledge XP
Sushi Egg Maki
Egg Maki
Tier 3 +2 daily rolls for getting new Observations in Research +% chance for +1 Tier for cooked sushi
Sushi Sashimi
Sashimi
Tier 4 +2 Research Points to buy upgrades with +% more Bucks generated
Sushi Tuna Maki
Tuna Maki
Tier 5 +2% Research AFK gains... if you\'re at 100%, I have good news and bad news... +% chance for +1 Tier for cooked sushi
Sushi Salmon Uramaki
Salmon Uramaki
Tier 6 Every new event, you get +1 play at the event game, FOREVER! x higher Fuel Capacity
Sushi Salmon Maki
Salmon Maki
Tier 7 All Spelunk Shop upgrades are 30% cheaper +% bonus Knowledge XP
Sushi Cucumber Uramaki
Cucumber Uramaki
Tier 8 1.3x artifact find chance +% more Bucks generated
Sushi Cucumber Maki
Cucumber Maki
Tier 9 +1 new magnifier to study your observations with +% chance for +1 Tier for cooked sushi
Sushi Onigiri
Onigiri
Tier 10 All Summoning upgrades are 30% cheaper +% faster Fuel generation
Sushi Toro Slice
Toro Slice
Tier 11 All your breeding Mobs deal 2x damage when fighting x higher Fuel Capacity
Sushi Toro Nigiri
Toro Nigiri
Tier 12 1.25x Stamina Regen Multi so you can get back to delving asap +% more Bucks generated
Sushi Beef Nigiri
Beef Nigiri
Tier 13 1.5x multiplier to Minehead currency gain +% bonus Knowledge XP
Sushi Beef Tobo Nigiri
Beef Tobo Nigiri
Tier 14 +1 Research Point to buy upgrades +% chance for free shaker usage
Sushi Tobiko Maki
Tobiko Maki
Tier 15 Whenever you get a new ribbon, theres a 20% chance it\'s 1 tier higher +% chance for +1 Tier for cooked sushi
Sushi Tobiko Temaki
Tobiko Temaki
Tier 16 1.25x Class EXP gain +% faster Fuel generation
Sushi Tobiko Cluster
Tobiko Cluster
Tier 17 All Minehead upgrades are now 50% cheaper instead of just 25% x higher Fuel Capacity
Sushi Tobo Sardine
Tobo Sardine
Tier 18 All your Exalted Stamps give a 0.01x higher bonus than before +% more Bucks generated
Sushi Tobo Twins
Tobo Twins
Tier 19 1.2x extra coins dropped by monsters +% cheaper upgrades
Sushi Live Squid
Live Squid
Tier 20 +1 Legend Talent Point. Sponsored by Whallamus. x higher Fuel Capacity
Sushi Live Octopus
Live Octopus
Tier 21 3x Spelunking POW +% chance for +1 Tier for cooked sushi
Sushi Calamari Ring
Calamari Ring
Tier 22 +3% grand discovery chance per Spelunking LV +% chance for free shaker usage
Sushi Bluefin Ring
Bluefin Ring
Tier 23 Unlocks a new Atom, which boosts Bucks gained +% bonus Knowledge XP
Sushi Tobo Tamago
Tobo Tamago
Tier 24 All your Prisma Bubbles give a 0.01x higher bonus than before +% faster Fuel generation
Sushi Tako Sashimi
Tako Sashimi
Tier 25 +2% Research AFK gains +% more Bucks generated
Sushi Hamachi Sashimi
Hamachi Sashimi
Tier 26 1.3x Burger. +% cheaper upgrades
Sushi Fat Tuna Sashimi
Fat Tuna Sashimi
Tier 27 All Sushi Station upgrades are 25% cheaper +% chance for +1 Tier for cooked sushi
Sushi King Beef Sashimi
King Beef Sashimi
Tier 28 All Spelunk Shop upgrades are now 50% cheaper instead of just 25% x faster Fuel generation
Sushi Salmon Sashimi
Salmon Sashimi
Tier 29 2x more Amber gained from Spelunking, time for new Biggest Hauls! x higher Fuel Capacity
Sushi Salmon Nigiri
Salmon Nigiri
Tier 30 2x bits gained from Gaming +% chance for free shaker usage
Sushi Fried Bass Nigiri
Fried Bass Nigiri
Tier 31 +1 maximum possible roll when rolling for new Observations +% bonus Knowledge XP
Sushi Seasoned Bass Nigiri
Seasoned Bass Nigiri
Tier 32 1.5x higher odds of getting new crowns for the Rat King in Gaming +% cheaper upgrades
Sushi Jumbo Shrimp
Jumbo Shrimp
Tier 33 2x more Stealth for all your Ninja Twins in Sneaking +% more Bucks generated
Sushi Aged Shrimp Nigiri
Aged Shrimp Nigiri
Tier 34 Get +3 more Exotic Market purchases at the start of each week +% faster Fuel generation
Sushi Tempura Shrimp
Tempura Shrimp
Tier 35 All Summoning upgrades are now 50% cheaper instead of just 25% +% bigger effects from Slots
Sushi Ika Sashimi
Ika Sashimi
Tier 36 2x higher farming Evo chance, to get new crop types with +% chance for +1 Tier for cooked sushi
Sushi Abalone Sashimi
Abalone Sashimi
Tier 37 +1% Hat Rack multi x faster Fuel generation
Sushi Aji Sashimi
Aji Sashimi
Tier 38 1.4x extra coins dropped by monsters +% chance for free shaker usage
Sushi Aji Aji Sashimi
Aji Aji Sashimi
Tier 39 All Upgrade Vault upgrades are 25% cheaper +% cheaper upgrades
Sushi Bubba Grand Salmon
Bubba Grand Salmon
Tier 40 Bubba now produced 2x more Meat Slice. Business is BOOMING! x higher Fuel Capacity
Sushi Tobiko Roll
Tobiko Roll
Tier 41 Get +1 more Tiny Cogs every day. You do have them unlocked by now right? +% bonus Knowledge XP
Sushi Spicy Tuna Roll
Spicy Tuna Roll
Tier 42 2x multiplier to all Sigil EXP gains +% bigger effects from Slots
Sushi Salmon Uramajor
Salmon Uramajor
Tier 43 1.2x higher Palette Luck in Gaming +% faster Fuel generation
Sushi Sesame Salmon Muramajor
Sesame Salmon Muramajor
Tier 44 1.5x Lab EXP gain +% bigger effects from Fireplaces
Sushi Dragon Roll
Dragon Roll
Tier 45 All Sushi Station upgrades are now 50% cheaper instead of just 25% +% chance for +1 Tier for cooked sushi
Sushi Imaginei Dragonroll
Imaginei Dragonroll
Tier 46 All your Sailing Captains earn 1.25x more personal EXP than before x faster Fuel generation
Sushi Dragon Nigiri
Dragon Nigiri
Tier 47 Generate 1.3x more Divinity PTS for Divinity +% chance for free shaker usage
Sushi Tamago Nigiri
Tamago Nigiri
Tier 48 All Upgrade Vault upgrades are now 50% cheaper instead of just 25% +% bigger effects from Slots
Sushi Unagi Nigiri
Unagi Nigiri
Tier 49 1.1x Drop Rate x higher Fuel Capacity
Sushi Soylent Nigiri
Soylent Nigiri
Tier 50 1.1x Total DMG x higher chance to Perfecto all sushi
Sushi Masago
Masago
Tier 51 +10% Bonus Ballot Multiplier +% cheaper upgrades
Sushi Masago Temaki
Masago Temaki
Tier 52 +10% Meritocracy Bonus Multi +% bigger effects from Fireplaces
Sushi Masagoroll
Masagoroll
Tier 53 1.5x chance for \'Blue Chest\' Monument Rewards +% bigger effects from Slots
Sushi Caviar Supreme
Caviar Supreme
Tier 54 1.01x bonuses from ALL Research upgrades x higher chance to Perfecto all sushi
Sushi Dulce Vitiri
Dulce Vitiri
Tier 55 +1% Gallery Bonus Multi x higher Fuel Capacity
Sushi Wasabaisamarama
Wasabaisamarama
Tier 56 1.25x Megacrop Growth Chance for getting more Farming Stickers +% chance for free shaker usage
Sushi Kraken Roll
Kraken Roll
Tier 57 +2 Opals for your Villagers +% bigger effects from Slots
Sushi Leviathan Roll
Leviathan Roll
Tier 58 1.3x extra Treasure found from opening Sailing Chests x faster Fuel generation
Sushi Golthulu Roll
Golthulu Roll
Tier 59 +10 Max Build LVs for all Shrines in Construction none

Wasomber Nigiri
Tier 60 +10% chance for an additional Orblet stack to drop on Royal Guardians! none

Leek Nigiri
Tier 61 +30% Resource Collection Rate for all your Royal Guardian outposts! none

Atomiroll
Tier 62 Regal Intervention spawns +2 more Regal Mobs than normal when triggered none

Octolingo
Tier 63 +10% drop chance for Marble for your Royal Guardian none

Sushi Upgrades

Below you can find all the upgrades available for the Sushi Station. They require Sushi Bucks to level up and Research Level to unlock.

Upgrade Description Max Level Research Required
Sushi Upgrade: Hourly Wage Meter
Hourly Wage Meter
Adds a display to the Top Right of the Sushi Station which shows total Hourly Bucks generated by all your sushi. Also, +1% total Bucks generated by all sushi! 9999 1
Sushi Upgrade: Fastburn Fuel I
Fastburn Fuel I
+15% faster Fuel generation 9999 6
Sushi Upgrade: Sushi Service Bonuses
Sushi Service Bonuses
Creating a new sushi type gives a new IdleOn bonus for the REST of the game! Check them out in the BONUS tap, top right corner. 1 11
Sushi Upgrade: Fuel Capacity I
Fuel Capacity I
+50 max Fuel Capacity! 9999 15
Sushi Upgrade: Customer Surcharge I
Customer Surcharge I
All your sushi generate Bucks based on their tier. Higher tier sushi generate way more! This upgrade boosts all Bucks generated by +2% 9999 19
Sushi Upgrade: Fastburn Fuel II
Fastburn Fuel II
+100% faster Fuel generation, and a unique x Fuel Generation multi bonus! 9999 21
Sushi Upgrade: Sushi Slot
Sushi Slot
Adds a new slot for your Sushi Station! 50 24
Sushi Upgrade: Superior Sushi Skillz
Superior Sushi Skillz
You can now click the Sushi on your fuel bar to change which sushi you cook, up to Tier X. This also increases fuel cost. 35 26
Sushi Upgrade: Fuel Capacity II
Fuel Capacity II
+200 max Fuel Capacity, and a unique x Fuel Cap bonus! 9999 28
Sushi Upgrade: Sushi Tier Vision
Sushi Tier Vision
Adds a toggle button to the Top Left of the Sushi Station. Click it to show Sushi Tiers numerically, can be turned off any time. Also, +2% total Bucks generated by all sushi! 9999 29
Sushi Upgrade: Salt Shaker
Salt Shaker
Click to use once per day. When used, all sushi have a chance of getting a Tier Up! By default, you get +1 shaker use every day, just sayin'. 1 30
Sushi Upgrade: Customer Surcharge II
Customer Surcharge II
All your sushi generate +3% more Bucks! Also, each unique sushi you create gives a 1.10x multiplicative bonus to Bucks generated, did you know that? 9999 31
Sushi Upgrade: Combo Meter
Combo Meter
Combining sushi adds score to the Combo Meter equal to the Tier created, but cooking new sushi OR taking too long ends the combo. Get a perma Bucks Multi based on your best combo! 1 33
Sushi Upgrade: Hot Slot
Hot Slot
Adds a new SPECIAL slot for your Sushi Station... the Hot Plate! Sushi on these slots generate x more Bucks! 20 34
Sushi Upgrade: Movement Mittens
Movement Mittens
Adds the MOVE button. Enabling this option lets you drag the SLOTS themselves around your Sushi Station, instead of the sushi. 1 35
Sushi Upgrade: Seared Knowledge
Seared Knowledge
Whenever a sushi is created in any way, that sushi type gains +1 EXP. Level up sushi for unique knowledge bonuses! 1 36
Sushi Upgrade: Charcoal Fireplace
Charcoal Fireplace
Unlock a new Fireplace! This default red charcoal fire increases Fuel generation by +1% per Tier of Sushi in the column above it. 15 37
Sushi Upgrade: Quickpay Fee
Quickpay Fee
When a sushi is created, it instantly generates 1 minute's worth of Bucks! 120 39
Sushi Upgrade: Fastburn Fuel III
Fastburn Fuel III
+750% faster Fuel generation, and a unique x Fuel Generation multi bonus! 9999 41
Sushi Upgrade: Fuel Capacity III
Fuel Capacity III
+1500 max Fuel Capacity, and a unique x Fuel Cap bonus! 9999 42
Sushi Upgrade: Shake N
Shake N' Bake
Whenever you use any Shaker, you instantly generate 1 hour's worth of Fuel! Also, 1% chance to get 10 hour's worth instead! 10 43
Sushi Upgrade: Customer Surcharge III
Customer Surcharge III
All your sushi generate +5% more Bucks! 9999 44
Sushi Upgrade: Quality Freshness
Quality Freshness
1% chance for freshly cooked Sushi to be +1 higher Tier! Cook T1, get T2! 25 45
Sushi Upgrade: Pepper Shaker
Pepper Shaker
Click to use once per day. When used, all sushi have a chance to be Perfecto'd, which means its Knowledge Bonus is 2x bigger! 1 46
Sushi Upgrade: Milktoast Slot
Milktoast Slot
Adds a new SPECIAL slot for your Sushi Station... the Milktoast Plate! Sushi on these slots generate + EXP/day 12 48
Sushi Upgrade: Barium Firelighter
Barium Firelighter
Fireplaces can be changed to green. Sushi above green fires generate x more Bucks. 1 49
Sushi Upgrade: Heat of the East Wind
Heat of the East Wind
When a sushi is combined, it tiers-up the sushi to its right, but only if that sushi is lower tiered. This only works on sushi Tier x and lower. 1 50
Sushi Upgrade: Fastburn Fuel IV
Fastburn Fuel IV
+5000% faster Fuel generation, and a unique x Fuel Generation multi bonus! 9999 51
Sushi Upgrade: Wholesale Pricing
Wholesale Pricing
All upgrades are % cheaper, now and forever! 9999 52
Sushi Upgrade: Bottomless Shakers
Bottomless Shakers
Whenever you use any Shaker, there's a 1% chance to get another usage! Free use, basically... 20 53
Sushi Upgrade: Fuel Capacity IV
Fuel Capacity IV
+10000 max Fuel Capacity, and a unique x Fuel Cap bonus! 9999 55
Sushi Upgrade: 2nd Degree Searing
2nd Degree Searing
Newly created Sushi generate + exp, instead of just +1 EXP. This is of course multiplied by all knowledge EXP multi's 9999 56
Sushi Upgrade: Copper Firelighter
Copper Firelighter
Fireplaces can be changed to blue. Sushi above blue fires have a 1% chance of getting +2 tiers instead of +1, so long as it's not your highest tier. 1 57
Sushi Upgrade: Saffron Shaker
Saffron Shaker
Click to use once per day. When used, all sushi generate 1 hour's worth of Bucks! 1 58
Sushi Upgrade: Cold Slot
Cold Slot
Adds a new SPECIAL slot for your Sushi Station... the Cold Plate! Sushi on these slots generate + EXP/day for ALL sushi lower tiered than this one! 8 60
Sushi Upgrade: Fastburn Fuel V
Fastburn Fuel V
+25000% faster Fuel generation, and a unique x Fuel Generation multi bonus! 9999 61
Sushi Upgrade: Sasaphrax Saffron
Sasaphrax Saffron
Saffron Shaker now generates x hour's worth of Bucks, not just 1 hour! 23 63
Sushi Upgrade: Customer Surcharge IV
Customer Surcharge IV
All your sushi generate +10% more Bucks! 9999 64
Sushi Upgrade: Overtuned Fuel
Overtuned Fuel
When you generate fuel while at max capacity, you get +1 ??? 1 65
Sushi Upgrade: Lithium Firelighter
Lithium Firelighter
Fireplaces can be changed to pink. Sushi above pink fires generate x more Knowledge EXP by all methods and means of doing so! Think about it. 1 66
Sushi Upgrade: Fuel Capacity V
Fuel Capacity V
+50000 max Fuel Capacity, and a unique x Fuel Cap bonus! 9999 67
Sushi Upgrade: Potassium Firelighter
Potassium Firelighter
Fireplaces can be changed to purple, which each give +1 ??/sec 1 68
Sushi Upgrade: No Tax on Tips
No Tax on Tips
Multiplies all Bucks earned by x 9999 70
Sushi Upgrade: 3rd Degree Searing
3rd Degree Searing
Boosts all Sushi EXP gained from all sources by +1%. That includes newly created Sushi and EXP from Cold and Milktoast plates. 9999 71
Sushi Upgrade: Customer Surcharge V
Customer Surcharge V
All your sushi generate +20% more Bucks! 9999 72

Rift Guy's Upgrade
I've got my hands in everything! Minehead, farming, the rift... so yea, of course I'm in the Sushi biz too, don't be so shocked. 0 73

Sushi Station Tips and Tricks

Sushi Board Setup

Sushi Station is all about merging lower-tier Sushi together to reach the next tier. In the beginning, you are capped by how much Fuel you can generate.

There are four key mechanics you need to be aware of:

  • Slots
  • Fireplaces
  • Heat of the East Wind
  • Shakers
  • Combo Meter

Sushi Slots

Sushi Slots / Plates are different shaded tiles that give various bonuses. You unlock plates in the Sushi Upgrades menu.

You can move slots around using the giant Oven Mitten Glove icon.

There are currently four different types:

Plate What It Does When To Use
Sushi Slot Adds an extra tile to the board Always be adding this to extend how many Sushi you can have, especially when going for Perfecto Sushi
Hot Slot Adds red tiles to your board; any Sushi placed on these give a multi to the Sushi Bucks they generate Keep your highest tier Sushi on Hot Slots for higher Sushi Bucks per hour
Milktoast Slot Sushi placed on the Milktoast slot give Knowledge EXP per day. The amount of EXP you get from these slots is super low and it only occurs daily. Don't invest too much into this upgrade
Cold Slot Sushi placed here give Knowledge EXP per day to all tiers lower than this one Whilst the amount of EXP is still low, at least it can affect multiple Sushi at once. If you're trying to rank up Knowledge for your lower-tier sushi, this is the plate to use.

Your Strategy here should be to have all your highest tier Sushi on Hot Plates and then any extra put onto Cold Slots.

Put a column of Hot Slots together, because you can then combine this with Fireplaces (see below).

Sushi Fireplaces

Fireplaces appear at the bottom of the Sushi Board and can be changed to different colors (once unlocked) by clicking on them. They have the following effects:

Fireplace What It Does When To Use
Charcoal Fireplace Increases Fuel Generation by 1% for all the Sushi above it Fuel Generation is key to progressing in the Sushi Station, so this is the default Fireplace you want on when AFKing.
Barium Fireplace Increases the amount of Sushi Bucks generated by the Sushi above it When aiming to level up your Sushi Upgrades, this is the Fireplace to switch to.
Copper Firelighter Sushi above have a 1% chance of getting +2 Tiers instead of +1. Use this Fireplace when you are merging Sushi together. Getting an extra Tier Up will significantly increase progression.
Lithium Firelighter Sushi above the pink fireplace generate more Knowledge EXP. Use this when going to Knowledge Levels.
Potassium Firelighter Sushi above this give x/sec Unsure

When AFKing, you should set your best Tier Sushi to Barium for the Sushi Bucks multiplier. For any others, you set them all to Charcoal when AFKing so you can generate Fuel faster.

When you're going for Sushi Tier-Ups, you want to switch to the Copper Fireplace (Blue); when going for Knowledge switch to Lithium (pink).

When you're about to unlock a new Tier, you should switch to Lithium also for the quick Knowledge Bonus level up.

Heat of the East Wind

Tier Up

This is where Sushi Station starts to dramatically improve. The upgrade Heat of the East Wind unlocks at Research Level 50, so if you're not there yet, try and focus on getting more Research EXP.

Heat of the East Wind allows you to chain Sushi Tier-Ups together. It will automatically Tier Up a lower tier Sushi to the right of the Sushi you're trying to Tier Up (so the example above would tier-up all of these sushi in a row; combine this with Copper Fireplaces and you suddenly get many more tier-up boosts).

It will also give you multiple boosts to Fuel in one go, allowing you to continuously max out your Fuel Capacity.

It does have a limit however; it will only effect Sushi Tiers 5 levels lower than your max.

Sushi Shakers

Shakers are dailies that give you a specific bonuses when used. They can stack up, so if you don't use your Shakers for a particular day, the use will carry over to the next day.

To make the use of Shakers, you'll want to unlock the Research Grid Shakin' It (i3). This gives you an extra +2 use per day when maxed out.

There are four Shakers you can unlock through the Sushi Upgrades:

Shaker Effect When To Use
Salt Shaker Has a chance to give all your Sushi on the board a +1 Tier Up Since Tier Ups also generate Fuel, it's best to use a Shaker when your Fuel is at 0 so you can replenish it.
Pepper Shaker Has a chance to Perfecto a Sushi Perfecto'd Sushi have their Knowledge Bonus doubled. You should use this when your entire Sushi board filled with a Sushi you need to Perfecto'd
Saffron Shaker Generates 1 hours worth of Sushi Bucks Honestly, not the best Shaker so probably best to use this when you get low on Fuel (as you do generate Fuel with this Shaker too).

You'll want to Perfecto all your Sushi Tiers eventually, but it's best to start with the lowest Tier of Sushi because you'll start having Tier Up rates that make it difficult to generate the Sushi you actually want to Perfecto.

The best time to use your Pepper Shaker is when you have your board full of the highest tier of Sushi possible and have 0 Fuel left to generate. Using this will also fully recharge your Fuel (usually).

Combo Meter

Combo Meter

The Sushi Combo Meter is a new feature introduced in patch V1.21. 

The Combo Meter gives a multiplicative bonus to Sushi Bucks generated. Each time you combo a Sushi Tier, the Combo Meter increases.

The Combo Meter also has a timer- as soon as you make your first tier-up, you'll have around 8 seconds to make the next tier up to increase the combo and reset the timer.

Your highest Combo Meter score stays permanent

Content within this article contains copyrighted material of Idleon. We are not affiliated with Idleon or its associated retailers in any way.

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