Steam Sale

Effects

This item can drop from Greed, as well as a rare drop from shopkeepers.
Items sold for 15 pennies will have their price reduced to 7.
Pickups sold for 5 pennies will have their price reduced to 3. Red hearts, normally sold for 3 pennies, will have their price reduced to 2.
Multiple Steam Sales can be obtained via each of the normal drop methods.
- (Removed in Afterbirth) Multiple Steam Sales have no effect.
- (Added in Afterbirth / Removed in Repentance) After obtaining 2 Steam Sales, all shop prices are set to 0 coins.
  - If Isaac has Restock, it is possible to collect an infinite supply of pickups/items. Extremely powerful when combined with Chaos.
- (Added in Repentance) Multiple Steam Sales only further reduce prices, with each additional copy lowering prices less.
  - The price is lowered to ({\displaystyle {\frac {price}{n+1}}}), where n is the number of Steam Sales.
(Added in Afterbirth / Removed in Afterbirth †) Steam Sale will cause the Deals with the Devil not to convert the type of required heart automatically.
(Added in Repentance) Prevents shops from having natural discounts on top of the Steam Sale discount.

(Added in Repentance)(Adoption Papers) Adoption Papers: Both of the discounts stack, selling familiars for 5 cents.
(Added in Afterbirth / Removed in Repentance) Diplopia: Can be used to create two Steam Sales, reducing the price of all items in the shop to 0.
- Diplopia + Restock or Greed mode: Restock will allow shop items to replenish indefinitely, so by having multiple Steam Sales by the methods above, infinite items may be purchased. Be careful not to pick up Missing No., which will remove the Steam Sales and will likely replace many items with Breakfast.
(Added in Repentance) Diplopia: Each additional Steam Sale will further reduce the price of all items in the shop, down to a minimum of 1 cent.