Best Upgrades

The best Fortune Mill upgrades are the ones that open a new loop: automation, helpers, permanent multipliers, ticket systems, side minigames, Sushi wheel rewards, and Gacha item slots. Small payout upgrades are still useful, but buy them after the systems below are working.

Cost and Effect Comparison

Upgrade	Room	Prerequisite	Base cost	Cost growth	Effect
Auto Throw	Darts	Quick Throw	65K Gold	1x	Automatically throw darts every 25 seconds, even when you’re in a different room!
Rattling Gunner	Darts	Super Bullseye	3K Gold	1x	Befriend the Rattling Gunner, who automatically shoots mini darts! Upgrade their firing rate for better passive income!
Trial Mode	Darts	Fancy Flights	5K Gold	1x	Unlocks Trial Mode. Throw 9 darts, and get a permanent Gold Multiplier based on your best score!
Shadow Realm	Darts	Ratatooie’s Secret Shop	6.667M Gold	1x	Unlocks the Shadow Realm, where you must defeat the bosses for permanent gold multipliers
Accountant Toad	Lotto	Unlock Green Ticket	1.5K Money	1x	Befriend the Accountant Toad! Every 30 seconds, they’ll generate money equal to 30% of your Best Wins from ALL ticket types!
Abacus Frog	Lotto	Unlock Purple Ticket	40K Money	1x	Befriend the Abacus Frog! You now get EXP by playing tickets, and each LEVEL UP boosts the money made on that ticket forever!
Peg Leveling	Pachi	Bubba the Seal	150K Tickets	10x	Your Pegs now earn EXP and level up when getting hit by a ball. Balls are worth more Tickets when they hit leveled up pegs!
Bubba the Seal	Pachi	Bigger Machine	10K Tickets	10x	Befriend Bubba the Seal, who launches balls into the high value buckets on the left!
Poker Pirate	Pachi	Blue Dice Game	40K Tickets	10x	Befriend the Poker Pirate and unlock his Card Game! The better the 5-card hand, the more balls you win!
Ghost Janitor	Sushi	Esteemed Ribbons	50K Ribbons	1x	Befriend the Ghost Janitor, who lets you reset your Sushi in exchange for a powerful Janitor Multiplier!
Poppy the Kangaroo Mouse	Sushi	Double Ribbon Slots	8K Ribbons	1x	Befriend Poppy the Kangaroo Mouse and her Prize Wheel. You get +1 spin every 5 minutes!
Pedestal Slot	Gacha	Quality Stuffing I	8 Stuffing	2x	Adds a new pedestal to place items on. Gacha items MUST be on pedestals to give their bonus, unless they’re a PASSIVE!
Gumball Goose	Gacha	Stuffing Gain II	30K Stuffing	1x	Befriend the Gumball Goose and his Gumball Machine! Buy him some gumballs for powerful permanent bonuses!

These are room upgrades that open important systems or reduce repeated work. Compare them with three cross-room options after those systems are available:

Cross-room record	Type	Exact effect	Decision use
Universal Slayer	Magic	Your gold gain multi from slaying Shadow Realm bosses now applies to ALL rooms, but only 10% of it does	Use only after Shadow Realm progress is meaningful across several rooms.
Boosts Currency Gained From All Rooms By 1.3x	Active Gacha item	Boosts currency gained from ALL rooms by 1.3x	Compare its all-room multiplier with the item that fixes the current single-room wall.
Sushi Bonus 13: All upgrades in all shops are 20% cheaper	Tier 1 Sushi bonus	All upgrades in all shops are 20% cheaper!	Buy many normal shop levels after this discount is active; bodyguard bribes still use their separate rule.

Short Answer

Priority	Buy These	Why
First	Auto Throw and Rattling Gunner	They reduce the earliest manual grind and let Darts keep producing while you look at other systems.
Next	Trial Mode and Shadow Realm	These turn Darts into a permanent-progress system instead of only a gold room.
Lotto core	Accountant Toad and Abacus Frog	They make ticket wins matter after the scratch is over through passive money and ticket levels.
Pachi core	Peg Leveling, Bubba the Seal, and Poker Pirate	Pachi scales through ball volume, peg levels, and side systems. These unlock that scaling.
Sushi core	Ghost Janitor and Poppy the Kangaroo Mouse	Ghost Janitor and Poppy turn Sushi into repeatable cross-room progress instead of only a ribbon shop.
Gacha core	Pedestal Slot, Gumball Goose, and capsule unlocks	Pedestals, gumballs, and deeper machines let item effects solve whichever room is currently blocking you.

S Tier System Unlocks

Upgrade	Room	Buy When
Auto Throw	Darts	As soon as manual throwing is the bottleneck.
Rattling Gunner	Darts	Before long Darts farming. It adds helper damage and makes the room less click-heavy.
Trial Mode	Darts	When you can afford to start permanent Trial progress instead of only buying more gold value.
Shadow Realm	Darts	When damage is stable enough to push a permanent Shadow Realm multiplier.
Accountant Toad	Lotto	When one good ticket win is worth preserving as passive money.
Abacus Frog	Lotto	When repeated ticket play is becoming the main Lotto grind.
Peg Leveling	Pachi	Before grinding Pachi volume, because peg EXP makes continued play compound.
Bubba the Seal	Pachi	When ball count is limiting Pachi output.
Poker Pirate	Pachi	When you are ready to add the card-hand side system and its achievements.
Ghost Janitor	Sushi	When Sushi runs are repeatable enough that a helper multiplier will keep paying off.
Poppy the Kangaroo Mouse	Sushi	When you can generate enough spins to make Poppy’s rewards matter.
Pedestal Slot	Gacha	When you have at least one active item worth amplifying.
Gumball Goose	Gacha	When long-term Gacha bonuses are more valuable than one more small stuffing upgrade.

Room-By-Room Buy Order

Room	Priority Path	Delay Until Later
Darts	Auto Throw -> Rattling Gunner -> score and dart value -> Trial Mode -> Shadow Realm -> Million Nugget Bribe.	Deep gold-only upgrades after the next room bribe is already reachable.
Lotto	Ticket unlocks -> Accountant Toad -> Abacus Frog -> jackpot support -> Million Dollar Bribe.	Jackpot hunting before the shared jackpot path is online.
Pachi	Ball generation -> Peg Leveling -> dice games -> Bubba the Seal -> Poker Pirate -> Million Ticket Bribe.	Dice achievement grinding before the dice and Poker Pirate systems are unlocked.
Sushi	Fuel and shakers -> Perfecto support -> Ghost Janitor -> Poppy the Kangaroo Mouse -> Million Ribbon Bribe.	Wheel top-prize chasing before spin generation and Poppy upgrades are comfortable.
Gacha	Pedestal Slot -> token and stuffing economy -> capsule unlocks -> Gumball Goose -> Million Stuffing Bribe.	Rolling expensive machines when cheaper item effects still solve your current bottleneck.

Upgrades To Delay

Delay This	Until
Small flat payout upgrades	A system unlock is no longer affordable or the payout upgrade directly funds the next bribe.
Cost coupons	You are about to buy many levels in that same room. A coupon bought too early can sit idle.
Jackpot-only Lotto upgrades	The base ticket is strong enough and the shared jackpot unlock is active.
Late Pachi dice grinding	Bubba the Seal and Poker Pirate are unlocked.
Wheel top-prize fishing	Poppy the Kangaroo Mouse is online and spin generation is comfortable.
Deep Gacha capsules	Token generation, stuffing gain, and at least one useful item setup are in place.

If You Are Stuck

Bottleneck	Best Pivot
Gold	Return to Darts for Trial Mode, Shadow Realm, and Magic upgrades.
Money	Push Lotto best wins, then let Accountant Toad and Abacus Frog make them persist.
Tickets	Improve Pachi ball generation, peg levels, Bubba the Seal, and dice systems.
Ribbons	Make Sushi repeatable first, then add Ghost Janitor and Poppy the Kangaroo Mouse.
Stuffing	Use Gacha item effects that boost the exact room blocking your next bribe before chasing raw rarity.
Too much clicking	Prioritize automation: Auto Throw, Abacus Frog Auto Scratch, Pachi lever upgrades, and helper unlocks.