diff --git a/packages/common/types/mob.d.ts b/packages/common/types/mob.d.ts
index 5de50dec31..c3d0a1e78d 100644
--- a/packages/common/types/mob.d.ts
+++ b/packages/common/types/mob.d.ts
@@ -1,5 +1,23 @@
 import type { Bonuses, Stats } from '@kaetram/common/types/item';
 
+// The mobs.json drops structure.
+export interface MobDrop {
+    key: string;
+    count?: number; // Defaults to 1 if undefined.
+    chance: number;
+    variable?: number; // Whether or not the drop amount is randomized.
+    // Quest and achievement requirements.
+    quest?: string;
+    achievement?: string;
+    status?: 'started' | 'notstarted' | 'finished'; // Optional parameter for when to drop item given quest/achievement.
+}
+
+export interface MobDropTable {
+    drops: MobDrop[];
+    achievement?: string; // Achievement that has to be finished to unlock the drop table.
+    quest?: string; // Quest that must be completed to unlock drop table.
+}
+
 export interface MobSkills {
     accuracy: number;
     strength: number;
@@ -12,7 +30,7 @@ export interface MobData {
     name: string;
     description?: string | string[];
     hitPoints?: number;
-    drops?: { [itemKey: string]: number };
+    drops?: MobDrop[];
     dropTables?: string[];
     level?: number;
     skills?: MobSkills;
diff --git a/packages/server/data/items.json b/packages/server/data/items.json
index 4d7bb7f806..c4f4c9b5aa 100644
--- a/packages/server/data/items.json
+++ b/packages/server/data/items.json
@@ -1537,7 +1537,7 @@
     "berylgoldring": {
         "type": "ring",
         "name": "Beryl Gold Ring",
-        "price": 200,
+        "price": 2000,
         "skill": "defense",
         "level": 20,
         "attackStats": {
@@ -2693,8 +2693,8 @@
     },
     "goldnugget": {
         "type": "object",
-        "name": "Gold Ore",
-        "description": "Raw gold ore, will need to be processed before it can be turned into something nice.",
+        "name": "Gold Nugget",
+        "description": "A piece of pure gold. For some reason it still has to be processed before it can be used.",
         "price": 650
     },
     "iboore": {
diff --git a/packages/server/data/mobs.json b/packages/server/data/mobs.json
index 9c82577a25..bb51c7936d 100644
--- a/packages/server/data/mobs.json
+++ b/packages/server/data/mobs.json
@@ -134,7 +134,20 @@
     "goblin": {
         "name": "Goblin",
         "description": "Didn't I see this same style of goblin in RuneScape?",
-        "drops": { "tinsword": 10000, "copperhelmet": 10000, "tinchestplate": 10000 },
+        "drops": [
+            {
+                "key": "tinsword",
+                "chance": 10000
+            },
+            {
+                "key": "copperhelmet",
+                "chance": 10000
+            },
+            {
+                "key": "tinchestplate",
+                "chance": 10000
+            }
+        ],
         "dropTables": ["ordinary", "arrows", "unusual", "vegetables", "fruits", "mushrooms"],
         "hitPoints": 90,
         "level": 7,
@@ -434,7 +447,16 @@
     "adherer": {
         "name": "Dark Mage",
         "description": "I heard that these things drop roses that I can then use to hit things with.",
-        "drops": { "darkmagehood": 600, "darkmagehoodgold": 20 },
+        "drops": [
+            {
+                "key": "darkmagehood",
+                "chance": 600
+            },
+            {
+                "key": "darkmagehoodgold",
+                "chance": 20
+            }
+        ],
         "dropTables": ["ordinary", "unusual", "shards"],
         "hitPoints": 200,
         "level": 38,
@@ -2028,7 +2050,12 @@
     "icevulture": {
         "name": "Ice Vulture",
         "description": "It's like a frozen version of the vicious bird I've seen before.",
-        "drops": { "feather": 25000 },
+        "drops": [
+            {
+                "key": "feather",
+                "chance": 25000
+            }
+        ],
         "dropTables": ["ordinary", "shards", "unusual", "arrows"],
         "hitPoints": 300,
         "level": 96,
@@ -3680,7 +3707,12 @@
 
     "vulture": {
         "name": "Vulture",
-        "drops": { "feather": 25000 },
+        "drops": [
+            {
+                "key": "feather",
+                "chance": 25000
+            }
+        ],
         "dropTables": ["ordinary", "shards", "unusual", "arrows"],
         "hitPoints": 100,
         "level": 16,
diff --git a/packages/server/data/spawns.json b/packages/server/data/spawns.json
index 9cb84edf35..c9410d7acc 100644
--- a/packages/server/data/spawns.json
+++ b/packages/server/data/spawns.json
@@ -11,12 +11,24 @@
 
     "224-359": {
         "name": "Hermit Crab Warrior",
-        "drops": {
-            "flask": 200,
-            "gold": 750,
-            "spear": 75,
-            "platearmor": 100
-        },
+        "drops": [
+            {
+                "key": "flask",
+                "chance": 2000
+            },
+            {
+                "key": "gold",
+                "chance": 7500
+            },
+            {
+                "key": "ironspear",
+                "chance": 750
+            },
+            {
+                "key": "platearmor",
+                "chance": 1000
+            }
+        ],
         "dropTables": ["ordinary", "unusual", "warriorcrab"],
         "roaming": true,
         "miniboss": true,
@@ -29,13 +41,12 @@
 
     "197-633": {
         "name": "Water Guardian",
-        "drops": {
-            "redguardarmor": 75,
-            "redguardarcherarmor": 75,
-            "ring1": 100,
-            "scimitar": 100,
-            "watermelonbow": 100
-        },
+        "drops": [
+            {
+                "key": "ring1",
+                "chance": 1000
+            }
+        ],
         "miniboss": true,
         "level": 36,
         "hitPoints": 350,
@@ -56,20 +67,63 @@
     "175-635": {
         "name": "Mimic",
         "achievement": "notwhatitseems",
-        "drops": {
-            "gold": 700,
-            "bigflask": 300,
-            "spear": 100,
-            "ring1": 100,
-            "pendant1": 100,
-            "goldring": 14
-        }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 7000
+            },
+            {
+                "key": "bigflask",
+                "chance": 3000
+            },
+            {
+                "key": "crystalspear",
+                "chance": 1000
+            },
+            {
+                "key": "ring1",
+                "chance": 1000
+            },
+            {
+                "key": "pendant1",
+                "chance": 1000
+            },
+            {
+                "key": "goldnugget",
+                "chance": 1000
+            }
+        ]
     },
 
     "411-732": {
         "name": "Mimic",
         "achievement": "treadcarefully",
-        "drops": { "gold": 300, "bigflask": 500, "spear": 100, "ring1": 100, "pendant1": 100 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 7000
+            },
+            {
+                "key": "bigflask",
+                "chance": 3000
+            },
+            {
+                "key": "crystalspear",
+                "chance": 1000
+            },
+            {
+                "key": "ring1",
+                "chance": 1000
+            },
+            {
+                "key": "pendant1",
+                "chance": 1000
+            },
+            {
+                "key": "goldnugget",
+                "chance": 1000
+            }
+        ]
     },
 
     "228-156": {
@@ -78,7 +132,32 @@
         "hitPoints": 1500,
         "level": 30,
         "defenseLevel": 10,
-        "drops": { "gold": 800, "bigflask": 400, "silverring": 10, "scimitar": 75, "pendant1": 125 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 7000
+            },
+            {
+                "key": "bigflask",
+                "chance": 3000
+            },
+            {
+                "key": "crystalspear",
+                "chance": 1000
+            },
+            {
+                "key": "ring1",
+                "chance": 1000
+            },
+            {
+                "key": "pendant1",
+                "chance": 1000
+            },
+            {
+                "key": "goldnugget",
+                "chance": 1000
+            }
+        ]
     },
 
     "460-725": {
@@ -87,13 +166,24 @@
         "hitPoints": 2200,
         "level": 84,
         "defenseLevel": 10,
-        "drops": {
-            "gold": 800,
-            "manaflask": 100,
-            "sproutring": 10,
-            "bluescimitar": 50,
-            "shardt1": 50
-        }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 7000
+            },
+            {
+                "key": "manaflask",
+                "chance": 3000
+            },
+            {
+                "key": "sproutring",
+                "chance": 100
+            },
+            {
+                "key": "shardt2",
+                "chance": 3000
+            }
+        ]
     },
 
     "855-611": {
@@ -102,7 +192,20 @@
         "hitPoints": 2200,
         "level": 84,
         "defenseLevel": 10,
-        "drops": { "gold": 800, "cure": 100, "shardt2": 25, "bluescimitar": 50, "greenpendant": 50 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 8000
+            },
+            {
+                "key": "cure",
+                "chance": 3000
+            },
+            {
+                "key": "greenpendant",
+                "chance": 500
+            }
+        ]
     },
 
     "677-671": {
@@ -111,7 +214,20 @@
         "hitPoints": 2200,
         "level": 84,
         "defenseLevel": 10,
-        "drops": { "gold": 800, "cure": 100, "shardt2": 25, "bluescimitar": 50, "greenpendant": 50 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 8000
+            },
+            {
+                "key": "cure",
+                "chance": 3000
+            },
+            {
+                "key": "greenpendant",
+                "chance": 500
+            }
+        ]
     },
 
     "706-555": {
@@ -120,7 +236,20 @@
         "hitPoints": 1300,
         "level": 62,
         "defenseLevel": 15,
-        "drops": { "gold": 500, "cure": 50, "shardt1": 50, "bluescimitar": 50, "greenpendant": 45 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 8000
+            },
+            {
+                "key": "cure",
+                "chance": 3000
+            },
+            {
+                "key": "greenpendant",
+                "chance": 500
+            }
+        ]
     },
 
     "168-31": {
@@ -164,7 +293,16 @@
         "name": "Ice Knight",
         "miniboss": true,
         "level": 62,
-        "drops": { "gold": 300, "icesword": 1000 }
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 3000
+            },
+            {
+                "key": "icesword",
+                "chance": 10000
+            }
+        ]
     },
 
     "784-676": {
diff --git a/packages/server/data/tables.json b/packages/server/data/tables.json
index a9a25d9586..479a2aa805 100644
--- a/packages/server/data/tables.json
+++ b/packages/server/data/tables.json
@@ -1,89 +1,286 @@
 {
     "warriorcrab": {
-        "bead": 100000
+        "drops": [
+            {
+                "key": "bead",
+                "chance": 100000
+            }
+        ]
     },
 
     "ordinary": {
-        "gold": 30000,
-        "flask": 12000,
-        "bigflask": 7200,
-        "manaflask": 7600,
-        "bigmanaflask": 5000,
-        "burger": 6800,
-        "string": 12000,
-        "feather": 10000
+        "drops": [
+            {
+                "key": "gold",
+                "chance": 30000
+            },
+            {
+                "key": "flask",
+                "chance": 12000
+            },
+            {
+                "key": "bigflask",
+                "chance": 7200
+            },
+            {
+                "key": "manaflask",
+                "chance": 7600
+            },
+            {
+                "key": "bigmanaflask",
+                "chance": 5000
+            },
+            {
+                "key": "burger",
+                "chance": 100000
+            },
+            {
+                "key": "string",
+                "chance": 100000
+            },
+            {
+                "key": "feather",
+                "chance": 100000
+            }
+        ]
     },
 
     "arrows": {
-        "arrow": 24000,
-        "firearrow": 7500,
-        "poisonarrow": 7000,
-        "lightningarrow": 6500,
-        "icearrow": 4000,
-        "nisocarrow": 3000,
-        "cinnabararrow": 2500,
-        "pythararrow": 2500,
-        "iboarrow": 2500
+        "drops": [
+            {
+                "key": "arrow",
+                "chance": 24000
+            },
+            {
+                "key": "firearrow",
+                "chance": 7500
+            },
+            {
+                "key": "poisonarrow",
+                "chance": 7000
+            },
+            {
+                "key": "lightningarrow",
+                "chance": 6500
+            },
+            {
+                "key": "icearrow",
+                "chance": 4000
+            },
+            {
+                "key": "nisocarrow",
+                "chance": 3000
+            },
+            {
+                "key": "cinnabararrow",
+                "chance": 2500
+            },
+            {
+                "key": "pythararrow",
+                "chance": 2500
+            },
+            {
+                "key": "iboarrow",
+                "chance": 2500
+            }
+        ]
     },
 
     "unusual": {
-        "blackpotion": 3000,
-        "hotsauce": 3000,
-        "cure": 3000,
-        "logs": 2000,
-        "stick": 5000,
-        "bead": 3000,
-        "banana": 3000,
-        "watermelon": 3000,
-        "apple": 3000
+        "drops": [
+            {
+                "key": "blackpotion",
+                "chance": 3000
+            },
+            {
+                "key": "cure",
+                "chance": 3000
+            },
+            {
+                "key": "logs",
+                "chance": 4500
+            },
+            {
+                "key": "stick",
+                "chance": 5000
+            },
+            {
+                "key": "bead",
+                "chance": 2500
+            }
+        ]
     },
 
     "shards": {
-        "shardt1": 2000,
-        "shardt2": 1500,
-        "shardt3": 1000,
-        "shardt4": 500,
-        "shardt5": 200
+        "drops": [
+            {
+                "key": "shardt1",
+                "chance": 2000
+            },
+            {
+                "key": "shardt2",
+                "chance": 1500
+            },
+            {
+                "key": "shardt3",
+                "chance": 1000
+            },
+            {
+                "key": "shardt4",
+                "chance": 500
+            },
+            {
+                "key": "shardt5",
+                "chance": 200
+            }
+        ]
     },
 
     "vegetables": {
-        "onion": 5000,
-        "chilli": 5000,
-        "potato": 5000,
-        "tomato": 5000
+        "drops": [
+            {
+                "key": "onion",
+                "chance": 5000
+            },
+            {
+                "key": "chilli",
+                "chance": 5000
+            },
+            {
+                "key": "potato",
+                "chance": 5000
+            },
+            {
+                "key": "tomato",
+                "chance": 5000
+            }
+        ]
     },
 
     "fruits": {
-        "strawberry": 8000,
-        "raspberry": 8000,
-        "plum": 8000,
-        "pineapple": 8000,
-        "peach": 8000,
-        "mulberry": 8000,
-        "mango": 8000
+        "drops": [
+            {
+                "key": "strawberry",
+                "chance": 8000
+            },
+            {
+                "key": "raspberry",
+                "chance": 8000
+            },
+            {
+                "key": "plum",
+                "chance": 8000
+            },
+            {
+                "key": "pineapple",
+                "chance": 8000
+            },
+            {
+                "key": "peach",
+                "chance": 8000
+            },
+            {
+                "key": "mulberry",
+                "chance": 8000
+            },
+            {
+                "key": "mango",
+                "chance": 8000
+            },
+            {
+                "key": "banana",
+                "chance": 8000
+            },
+            {
+                "key": "watermelon",
+                "chance": 8000
+            },
+            {
+                "key": "apple",
+                "chance": 8000
+            }
+        ]
     },
 
     "mushrooms": {
-        "mushroom1": 6000,
-        "mushroom2": 6000,
-        "mushroom3": 6000,
-        "mushroom4": 6000,
-        "mushroom5": 6000,
-        "mushroom6": 6000
+        "drops": [
+            {
+                "key": "mushroom1",
+                "chance": 6000
+            },
+            {
+                "key": "mushroom2",
+                "chance": 6000
+            },
+            {
+                "key": "mushroom3",
+                "chance": 6000
+            },
+            {
+                "key": "mushroom4",
+                "chance": 6000
+            },
+            {
+                "key": "mushroom5",
+                "chance": 6000
+            },
+            {
+                "key": "mushroom6",
+                "chance": 6000
+            }
+        ]
     },
 
     "manafruits": {
-        "arcanahypercube": 5000,
-        "ettispinefruit": 5000,
-        "galaxylilies": 5000,
-        "godscroissant": 5000,
-        "stellarcluster": 5000,
-        "harmoniccrossband": 5000,
-        "livinganchorroot": 5000,
-        "manaberry": 5000,
-        "nexuscross": 5000,
-        "orchardsbane": 5000,
-        "wartberries": 5000,
-        "zephyrsgaleblade": 5000
+        "drops": [
+            {
+                "key": "arcanahypercube",
+                "chance": 5000
+            },
+            {
+                "key": "ettispinefruit",
+                "chance": 5000
+            },
+            {
+                "key": "galaxylilies",
+                "chance": 5000
+            },
+            {
+                "key": "godscroissant",
+                "chance": 5000
+            },
+            {
+                "key": "stellarcluster",
+                "chance": 5000
+            },
+            {
+                "key": "harmoniccrossband",
+                "chance": 5000
+            },
+            {
+                "key": "livinganchorroot",
+                "chance": 5000
+            },
+            {
+                "key": "manaberry",
+                "chance": 5000
+            },
+            {
+                "key": "nexuscross",
+                "chance": 5000
+            },
+            {
+                "key": "orchardsbane",
+                "chance": 5000
+            },
+            {
+                "key": "wartberries",
+                "chance": 5000
+            },
+            {
+                "key": "zephyrsgaleblade",
+                "chance": 5000
+            }
+        ]
     }
 }
diff --git a/packages/server/src/game/entity/character/mob/handler.ts b/packages/server/src/game/entity/character/mob/handler.ts
index 949e0de44e..16ba9750ad 100644
--- a/packages/server/src/game/entity/character/mob/handler.ts
+++ b/packages/server/src/game/entity/character/mob/handler.ts
@@ -3,10 +3,11 @@ import Utils from '@kaetram/common/util/utils';
 import { Modules } from '@kaetram/common/network';
 import { Bubble } from '@kaetram/common/network/impl';
 
+import type Mob from './mob';
 import type Map from '../../../map/map';
 import type World from '../../../world';
 import type Character from '../character';
-import type Mob from './mob';
+import type Player from '../player/player';
 
 /**
  * The handler class file for the Mob object. We use this to better
@@ -84,7 +85,11 @@ export default class Handler {
                 [instance] = element,
                 entity = this.world.entities.get(instance);
 
-            // Ignore non-player entities.
+            /**
+             * Ensure that the entity exists and that it's a player. Drops do not occur
+             * if the entity that kills the mob is non-existent (i.e. if killed via command.)
+             */
+
             if (!entity?.isPlayer()) continue;
 
             // Kill callback is sent to the player who dealt most amount of damage.
@@ -93,7 +98,7 @@ export default class Handler {
                 entity.killCallback?.(this.mob);
 
                 // Drop the mob's loot and pass the owner's username.
-                this.mob.drop(entity.username);
+                this.mob.drop(entity as Player);
             }
         }
 
diff --git a/packages/server/src/game/entity/character/mob/mob.ts b/packages/server/src/game/entity/character/mob/mob.ts
index 4cdd0bea08..e9670978a1 100644
--- a/packages/server/src/game/entity/character/mob/mob.ts
+++ b/packages/server/src/game/entity/character/mob/mob.ts
@@ -13,15 +13,15 @@ import { Modules, Opcodes } from '@kaetram/common/network';
 import { Heal, Movement } from '@kaetram/common/network/impl';
 import { SpecialEntityTypes } from '@kaetram/common/network/modules';
 
-import type DefaultPlugin from '../../../../../data/plugins/mobs/default';
 import type Area from '../../../map/areas/area';
 import type Areas from '../../../map/areas/areas';
 import type World from '../../../world';
 import type Entity from '../../entity';
 import type Chest from '../../objects/chest';
 import type Player from '../player/player';
+import type DefaultPlugin from '../../../../../data/plugins/mobs/default';
 import type { Bonuses, Stats } from '@kaetram/common/types/item';
-import type { RawData, MobData, MobSkills } from '@kaetram/common/types/mob';
+import type { RawData, MobData, MobSkills, MobDrop, MobDropTable } from '@kaetram/common/types/mob';
 import type { EntityData, EntityDisplayInfo } from '@kaetram/common/types/entity';
 
 interface ItemDrop {
@@ -57,7 +57,7 @@ export default class Mob extends Character {
     private defenseStats: Stats = Utils.getEmptyStats();
     private bonuses: Bonuses = Utils.getEmptyBonuses();
 
-    private drops: { [itemKey: string]: number } = {}; // Empty if not specified.
+    private drops: MobDrop[] = [];
     private dropTables: string[] = [];
 
     private skills: MobSkills = {
@@ -248,17 +248,25 @@ export default class Mob extends Character {
 
     /**
      * Handles the dropping of items from the mob.
-     * @param owner The leading attacker in the mob's death. Only they will be able
-     * to pick up the drop for a certain period of time.
+     * @param player The leading player who dealt the most damage.
      */
 
-    public drop(owner = ''): void {
-        let drops = this.getDrops();
+    public drop(player: Player): void {
+        let drops = this.getDrops(player);
 
+        // No drops were calculated, so we stop here.
         if (drops.length === 0) return;
 
         for (let drop of drops)
-            this.world.entities.spawnItem(drop.key, this.x, this.y, true, drop.count, {}, owner);
+            this.world.entities.spawnItem(
+                drop.key,
+                this.x,
+                this.y,
+                true,
+                drop.count,
+                {},
+                player.username
+            );
     }
 
     /**
@@ -291,10 +299,11 @@ export default class Mob extends Character {
      * drop chance. We add the item to the list if the roll is successful. We continue
      * by looking through the mob's drop tables and doing the same thing. We then
      * return the list of items that the mob will drop.
+     * @param player Theplayer entity that we use to determine what drops we can use.
      * @returns A list of items that the mob will drop.
      */
 
-    public getDrops(): ItemDrop[] {
+    public getDrops(player: Player): ItemDrop[] {
         let drops: ItemDrop[] = [], // The items that the mob will drop
             randomItem = this.getRandomItem(this.drops);
 
@@ -302,25 +311,34 @@ export default class Mob extends Character {
         if (randomItem) drops.push(randomItem);
 
         // Add items from the mob's drop table.
-        drops = [...drops, ...this.getDropTableItems()];
+        drops = [...drops, ...this.getDropTableItems(player)];
 
         return drops;
     }
 
     /**
      * Looks through the drop tables of the mob and iterates through those to get items.
+     * @param player The player entity that killed the mob. Used for determining whether or
+     * not we can use the drop table.
      * @returns List of items from the drop table.
      */
 
-    private getDropTableItems(): ItemDrop[] {
+    private getDropTableItems(player: Player): ItemDrop[] {
         let drops: ItemDrop[] = [];
 
         for (let key of Object.values(this.dropTables)) {
-            let table = dropTables[key as keyof typeof dropTables]; // Pick the table from the list of drop tables.
+            let table: MobDropTable = dropTables[key as keyof typeof dropTables]; // Pick the table from the list of drop tables.
+
+            // Player doesn't have the achievement for the drop table completed.
+            if (table.achievement && !player.achievements.get(table.achievement)?.isFinished())
+                continue;
+
+            // Player doesn't have the quest completed to have access to the drop table.
+            if (table.quest && !player.quests.get(table.quest)?.isFinished()) continue;
 
             // Something went wrong.
             if (table) {
-                let randomItem = this.getRandomItem(table);
+                let randomItem = this.getRandomItem(table.drops);
 
                 // Add a random item from the table.
                 if (randomItem) drops.push(randomItem);
@@ -338,17 +356,14 @@ export default class Mob extends Character {
      * @returns Returns an `ItemDrop` object containing the key and the count.
      */
 
-    private getRandomItem(items: { [key: string]: number }): ItemDrop | undefined {
-        let keys = Object.keys(items);
-
+    private getRandomItem(items: MobDrop[]): ItemDrop | undefined {
         // No items to pick from.
-        if (keys.length === 0) return undefined;
+        if (items.length === 0) return undefined;
 
-        let key = keys[Utils.randomInt(0, keys.length - 1)],
-            drop = items[key],
-            count = 1;
+        let drop = items[Utils.randomInt(0, items.length - 1)],
+            count = drop.count || 1; // 1 if not specified.
 
-        switch (key) {
+        switch (drop.key) {
             case 'gold': {
                 count = Utils.randomInt(this.level, this.level * 10);
                 break;
@@ -384,9 +399,9 @@ export default class Mob extends Character {
         let probability = this.world.getDropProbability();
 
         // If the chance is greater than the drop probability, we adjust the drop
-        if (drop > probability) drop = probability;
+        if (drop.chance > probability) drop.chance = probability;
 
-        return Utils.randomInt(0, probability) < drop ? { key, count } : undefined;
+        return Utils.randomInt(0, probability) < drop.chance ? { key: drop.key, count } : undefined;
     }
 
     /**