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| Name | Type | Slot | Bonuses | Effects | Requirements |
| Cabbage | Food | | | Heal (1 hit point) | |
| Cabbage Seed | | | | | |
| Cactus Spine | | | | | |
| Cadantine | | | | | |
| Cadava Berry | | | | | |
| Cadava Potion | | | | | |
| Cadavaberry Seed | | | | | |
| Cake | Food | | | Heal (4 hit points) | |
| Camo Bottom | Armor | Legs | | | |
| Camo Helmet | Armor | Head | | | |
| Camo Top | Armor | Body | | | |
| Candle | | | | | |
| Cane | | | | | |
| Cannister | | | | | |
| Cannonball | | | | | |
| Canopic Jar | | | | | |
| Cape of Legends | Armor | Back | Crush Defense +7, Magic Defense +7, Ranged Defense +7, Slash Defense +7, Stab Defense +7 | | |
| Carnillean Armor | Armor | Body | Crush Defense +8, Slash Defense +14, Stab Defense +20 | | |
| Casket | | | | | |
| Castle Wars Ticket | | | | | |
| Catspeak Amulet | | | | | |
| Cattleprod | | | | | |
| Cavern Key | | | | | |
| Chaos Gauntlets | Armor | Hands | Crush Attack +2, Crush Defense +7, Slash Attack +2, Slash Defense +9, Stab Attack +2, Stab Defense +8, Strength +2 | Bolt Spell Damage Add (+3) | |
| Chaos Rune | | | | | |
| Chaos Talisman | | | | | |
| Charcoal | | | | | |
| Charcoal Log | | | | | |
| Chart | | | | | |
| Cheese | Food | | | Heal (2 hit points) | |
| Chef's Hat | Armor | Head | | | |
| Child's Blanket | | | | | |
| Chisel | | | | | |
| Chocolate Cake | Food | | | Heal (5 hit points) | |
| Chocolate Dust | | | | | |
| Clay | | | | | |
| Cleaning Cloth | | | | | |
| Climbing Boots | Armor | Feet | | | |
| Clue Scroll | | | | | |
| Coal | | | | | |
| Colored Ball | | | | | |
| Commorb | | | | | |
| Competition Pass | | | | | |
| Composite Ogre Bow | Weapon | Primary | Ranged Attack +38 | | |
| Compost | | | | | |
| Compost Potion | | | | | |
| Conductor Mold | | | | | |
| Consecration Seed | | | | | |
| Cooked Chompy Bird | | | | | |
| Cooked Karambwan | | | | | |
| Cooked Karambwan Paste | | | | | |
| Cooked Lava Eel | Food | | | | |
| Cooked Meat | Food | | | Heal (3 hit points) | |
| Cooked Trout | | | | | |
| Cooked Tuna | Food | | | | |
| Cooking Gauntlets | Armor | | Crush Attack +2, Crush Defense +7, Slash Attack +2, Slash Defense +9, Stab Attack +2, Stab Defense +8, Strength +2 | Decreases Chance of Burning Fish | |
| Copper Ore | | | | | |
| Corpse of Woman | | | | | |
| Cosmic Rune | | | | | |
| Cosmic Talisman | | | | | |
| Cowhide | | | | | |
| Crab Claw | Armor | | Crush Defense +2, Slash Defense +4, Stab Defense +3, Strength +1 | | |
| Crab Helmet | Armor | Head | Crush Attack +8, Crush Defense +3, Magic Attack -3, Magic Defense -1, Ranged Attack -1, Ranged Defense +4, Slash Defense +5, Stab Defense +4 | | |
| Crafting Gauntlets | Armor | Hands | Crush Attack +2, Crush Defense +7, Slash Attack +2, Slash Defense +9, Stab Attack +2, Stab Defense +8, Strength +2 | Doubles Gold Smithing Exp | |
| Crane Schematic | | | | | |
| Crimson Charm | | | | | |
| Crumpled Scroll | | | | | |
| Crushed Gorak Claws | | | | | |
| Crushed Mud Rune | | | | | |
| Crushed Tchiki Nuts | | | | | |
| Crystal Bow | Weapon | Ranged | Ranged Attack +100 | | Agility: 50, Ranged: 70 |
| Crystal Chime | | | | | |
| Crystal Key | | | | | |
| Crystal Saw | | Primary | Construction +3 | | |
| Crystal Shield | Armor | Secondary | | | |
| Crystal Trinket | | | | | |
| Culpric Ore Powder | | | | | |
| Cup of Tea | Drink | | | | |
| Cupric Sulfate | | | | | |
| Curry Leaf | | | | | |
| Curry Tree Seed | | | | | |
| Cut Emerald | | | | | |
| Cut Sapphire | | | | | |
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