Because of how purchasing upgrades work in this game, there is a specific purchase order that you can follow in order to minimize the total cost of all the upgrades. For each upgrade you buy, the cost of every other upgrade goes up by 10%.
 
Listed below is the purchase order which results in the least amount of gold spent to get them all.
 
This guide has been updated for patch 0.5.1
 
 

Purchase Order

 
Revival + Reroll
 

 
Curse
 

 
Amount
 

 
Growth
 

 
Cooldown
 

 
Armor + Luck
 
 

 
 
Greed + Might + Recovery
 
 

 
 
Amount + Area + Speed + Move Speed + Duration
 

 
Max Health
 

 
Skip + Banish
 
 
 

Planning to add

• Total gold cost for each tier.
• Total amount of gold spent when fully upgraded.

 
 

 
 
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