Shops

Shops are special areas in every biome (except for Boss biomes like Black Bridge) that sell 3 random items that can be purchased in exchange for Gold.

Shop Variants
Three types of Shops exist in the game: the Weapon Shop, the Skill Shop, and the Food Shop. They have different shopkeepers and appearances and sell different things. While Weapon Shops and Skill Shops are bound to appear somewhere in every biome, Food Shops are only found in a few specific biomes and cannot appear randomly outside of them.


 * Weapon Shops sell ranged weapons, melee weapons, and shields.
 * Skill Shops sell traps, turrets, grenades, and powers.
 * Food Shops sell food, flask recharges and cough syrup. Cough syrup is only sold on Nightmare and Hell difficulties and replaces the minor food item that is normally sold in lower difficulties.

Shop Upgrades
There are 2 upgrades for shops that can be unlocked by The Collector.

With the Restock general improvement, offered items can be rerolled up to 5 times for free to change what items will be sold, but will increase the prices of the offered items by 40%.

The secret upgrade, Merchandise Categories, allows the player to choose between 3 separate categories: Brutality items, Tactics items, or Survival items. When choosing one of these categories, 3 random items that correspond with the selected category will appear. Note that once one category is chosen, you cannot choose another one.


 * Using one of the special Custom Mode modifiers will change the shops to how they were prior to v1.9. This will allow the player to choose between what weapon types (Melee, Ranged, Shields) or skill types (Deployable Traps, Grenades, Miscellaneous Skills) the shop will sell. Unlike most modifiers, this one does not disable Achievements.

Gear Prices
Every gear sold in shops costs a certain amount of money. Rerolling the gears a shop has will progressively increase the cost of the gears sold there by 40% their base prices every time the gears are rerolled.
 * Note that shops always sell gears that are 2 levels above other gears found in the biome they are located in. Because of this, it is not possible for shops to sell gears that are below gear level 3.

The formula for gears' prices is: (Base price)*(100% + Quality Impact + Modifier Impact) + 100*(Item level - 1)
 * Quality Impact is a percentage that is different between gear qualities.
 * {| class=wikitable style="text-align:center;"

!Quality !Cost Impact
 * Basic || +0%
 * + || +30%
 * ++ || +60%
 * S || +90%
 * L || +30%
 * }
 * Modifier Impact is the sum of Cost Impact of Modifiers on the gear.
 * Item level is the roman number next to the gear's name.
 * L || +30%
 * }
 * Modifier Impact is the sum of Cost Impact of Modifiers on the gear.
 * Item level is the roman number next to the gear's name.
 * Item level is the roman number next to the gear's name.

Food Prices
Food Shop items have their own prices that is separate from gear prices. Prices for food and other healing items is always the same, regardless of biome.

Resell Prices
If the player has the upgrade Recycling I or Recycling II, they can resell the gears they have, and get back 7% (Recycling I) or 15% (Recycling II) of the gear's price.
 * For Amulets, their prices are also calculated by the same formula of gear prices. Their base price is 5,000 Gold.

Dialogue
The Shopkeepers only have the same looping dialogue over and over, where they become more annoyed with the Beheaded the more they talk to him, until their dialogue resets to the beginning of their lines.
 * "EVERYTHING MUST GO!"
 * "What do you need?"
 * "Are you going to buy something or what?"
 * "You know, this is starting to get on my nerves..."
 * "HEY! You gonna buy something?!"
 * "Just my luck to get stuck with the island idiot."
 * "Just my luck to get stuck with the island idiot."

If the player uses Custom Mode to alter the item pool and turn off every item available, the shopkeeper will give a unique line to remark it.
 * "I've got nothing to offer you, scram!"

When unlocking the Vorpan:
 * "Hmph... can't even find something worth cooking around here..."
 * "You may as well take it. Wish you luck! ... You will need it."

If you are carrying both the Vorpan and the  Tentacle:
 * “Grilled tentacle? You, sir, are a man of great taste.”

Trivia

 * In the background of weapon and skill shops, is what appears to be the Buster Sword, a weapon wielded by the character Cloud Strife in Final Fantasy 7.