Upgrade priority tier list
A bottleneck-based ranking of verified systems. S means “protect this loop first,” not “this has a secret multiplier.”
Priorities move with your factory. Upgrade the stage where materials are visibly waiting, then re-check the full chain.
S Tier
Seeds & Growing
The verified starting loop: buy seeds and grow sour fruit. Keep plots active before spending elsewhere.
Read priority guide →Removing production bottlenecksCandy Machines
Machines turn harvested fruit into sour candy. Base upgrades unlock more machines and expand production.
Read priority guide →A Tier
Candy Stall
Finished candy is sold to NPCs. Gameplay footage shows a dedicated Candy Stall interaction and sell slots.
Read priority guide →Clearing a proven sales queueSell Slots
Gameplay footage shows limited sell slots that can be expanded. Upgrade only when finished candy is waiting to sell.
Read priority guide →B Tier
Index & Rewards
The game UI includes Index and Rewards menus. Check them after meaningful unlocks so progress is not left unclaimed.
Read priority guide →Current late-game explorationAscension Plots
The current official update highlights Ascension Plots, three new plots, four new trees and twelve new fruits.
Read priority guide →How to read this list
Seed plots and machines sit at S because the official game loop cannot produce candy without them. Selling and sell slots matter once finished inventory queues. Index, rewards, and current ascension content are valuable checks, but they should not stop an idle core factory from being fixed.
Need a production number?
Use the batch calculator with the recipe shown in your game.