| Name   | Location   | Market price   | Quest | Members Only | 
| Orikalkum kiteshield | Player made (See Notes Section). | 16.7k gp | No | Yes | 
| Orikalkum kiteshield + 1 | Player made (See Notes Section). | 52.2k gp | No | Yes | 
| Orikalkum kiteshield + 2 | Player made (See Notes Section). | 98.9k gp | No | Yes | 
| Orikalkum kiteshield + 3 | Player made (See Notes Section). | 126.3k gp | No | Yes | 
| Orikalkum mattock | Player Made (See Notes Section). | 16.5k gp | No | Yes | 
| Orikalkum off hand warhammer | Player made (See Notes Section). | 12.2k gp | No | Yes | 
| Orikalkum off hand warhammer + 1 | Player made (See Notes Section). | 53.2k gp | No | Yes | 
| Orikalkum off hand warhammer + 2 | Player made (See Notes Section). | 105.9k gp | No | Yes | 
| Orikalkum off hand warhammer + 3 | Player made (See Notes Section). | 111.8k gp | No | Yes | 
| Orikalkum ore box | Player Made (See Notes Section). | 77.0k gp | No | Yes | 
| Orikalkum pickaxe | Player Made (See Notes). | 16.9k gp | No | Yes | 
| Orikalkum pickaxe + 1 | Player Made (See Notes). | 37.1k gp | No | Yes | 
| Orikalkum pickaxe + 2 | Player Made (See Notes) | 62.6k gp | No | Yes | 
| Orikalkum pickaxe + 3 | Player Made (See Notes). | 110.3k gp | No | Yes | 
| Orikalkum platebody | Player made (See Notes Section). | 14.0k gp | No | Yes | 
| Orikalkum platebody + 1 | Player made (See Notes Section). | 51.5k gp | No | Yes | 
| Orikalkum platebody + 2 | Player made (See Notes Section). | 199.6k gp | No | Yes | 
| Orikalkum platebody + 3 | Player made (See Notes Section). | 324.7k gp | No | Yes | 
| Orikalkum platelegs | Player made (See Notes Section). | 9,383 gp | No | Yes | 
| Orikalkum platelegs + 1 | Player made (See Notes Section). | 55.2k gp | No | Yes | 
| Orikalkum platelegs + 2 | Player made (See Notes Section). | 78.0k gp | No | Yes | 
| Orikalkum platelegs + 3 | Player made (See Notes Section). | 209.6k gp | No | Yes | 
| Orikalkum warhammer | Player made (See Notes Section). | 13.5k gp | No | Yes | 
| Orikalkum warhammer + 1 | Player made (See Notes Section). | 52.6k gp | No | Yes | 
| Orikalkum warhammer + 2 | Player made (See Notes Section). | 55.1k gp | No | Yes | 
| Orikalkum warhammer + 3 | Player made (See Notes Section). | 114.3k gp | No | Yes | 
| Ork cleaver sword | Unknown, please submit. | --- | No | Yes | 
| Ork cleaver sword (damaged) | Obtained by excavating Crucible stands debris; Obtained by completing Warforge Dig Site Site Research; Obtained by opening Ancient caskets. | --- | No | Yes | 
| Orkish claw component | A random drop while taking part in The Bird and the Beast event. | --- | No | No | 
| Orkish shield component | A random drop while taking part in The Bird and the Beast event. | --- | No | No | 
| Orkish throwing star component | A random drop while taking part in The Bird and the Beast event. | --- | No | No | 
| Orkish wand component | A random drop while taking part in The Bird and the Beast event. | --- | No | No | 
| Orlando Smith's hat | Possible reward from Reward casket (master). | 2,147.5m gp | No | Yes | 
| Ornament | Player made (See Notes Section). | --- | Yes | Yes | 
| Ornate bowl | Player made (See Notes Section). | --- | No | Yes | 
| Orthen invitation | Appears in a player's inventory upon meeting the requirements. If they have no space in their inventory, then it appears the next time they do. | --- | No | Yes | 
| Orthenglass | Obtained by excavating various Hotspots and Caches (See Notes for details) or Screening Fiery brimstone, Saltwater mud, Aerated sediment, or Volcanic ash; Possible reward from an Ancient casket. | 3,140 gp | No | Yes | 
| Orthenglass flask | Unknown, please submit. | --- | No | Yes | 
| Orthenglass flask (damaged) | Obtained by excavating Experiment workbench; Obtained by completing Orthen Dig Site Site Research; Obtained by opening Ancient caskets. | --- | No | Yes | 
| Otot tablet | Player Made (See Notes). | --- | No | Yes | 
| Ourg bones | Randomly found by searching the Ogre Coffins found in the Jiggig section of the Ogre Area; Looting Zombie impling jars. | 40.8k gp | No | Yes | 
| Ourg bones (General Graardor) | Monster drop. | 12.8k gp | No | Yes | 
| Ourg megahitter | Unknown, please submit. | --- | No | Yes | 
| Ourg megahitter (damaged) | Obtained by excavating Goblin trainee remains; Obtained by completing Warforge Dig Site Site Research and the Bandosian Special Research "Dwarven Forge"; Obtained by opening Ancient caskets. | --- | No | Yes | 
| Ourg tower-goblin cower shield | Unknown, please submit. | --- | No | Yes | 
| Ourg tower/goblin cower shield (damaged) | Obtained by excavating Goblin trainee remains; Obtained by completing Warforge Dig Site Site Research; Obtained by opening Ancient caskets. | --- | No | Yes | 
| Ouroboros pouch | Obtained from the Temple Trekking noticeboard after raising Jayene Kliyn to level 99. | --- | No | Yes | 
| Overcooked rocks | Taken from the table next to where the wizards are sitting. | --- | No | No | 
| Overgrown cat | Player Made (See Notes). | --- | No | No | 
| Overgrown cat (purple) | Player Made (See Notes). | --- | No | No | 
| Overgrown hellcat | Player Made (See Notes). | --- | No | No | 
| Overload (1) | Player made (See Notes Section). | --- | No | Yes | 
| Overload (2) | Player made (See Notes Section). | --- | No | Yes | 
| Overload (3) | Player made (See Notes Section). | --- | No | Yes | 
| Overload (4) | Player made (See Notes Section). | --- | No | Yes | 
| Overload flask (1) | Player made (See notes section). | --- | No | Yes | 
| Overload flask (2) | Player made (See notes section). | --- | No | Yes | 
| Overload flask (3) | Player made (See notes section). | --- | No | Yes | 
| Overload flask (4) | Player made (See notes section). | --- | No | Yes | 
| Overload flask (5) | Player made (See notes section). | --- | No | Yes | 
| Overload flask (6) | Player made (See notes section). | --- | No | Yes | 
| Overload salve (1) | Player made (See Notes). | --- | No | Yes | 
| Overload salve (2) | Player made (See Notes). | --- | No | Yes | 
| Overload salve (3) | Player made (See Notes). | --- | No | Yes | 
| Overload salve (4) | Player made (See Notes). | --- | No | Yes | 
| Overload salve (5) | Player made (See Notes). | --- | No | Yes | 
| Overload salve (6) | Player made (See Notes). | --- | No | Yes | 
| Oxidised Kiteshield | Player made by using Ugthanki dung on a bronze kite shield in the heat of the desert sun. | --- | Yes | Yes | 
| Oyster | You may catch an oyster while fishing with a big fishing net or while panning at the Digsite, withdrawn from a Granite Crab, or can be found from monster drops. | 5,056 gp | No | Yes | 
| Oyster pearl | Caught while Big net fishing, Monster drop. | 893 gp | No | Yes | 
| Oyster pearls | Caught while Big net fishing, Monster drop, panning at the Digsite. | 454 gp | No | Yes | 
| Ozan's mask | Received from Ozan. | --- | Yes | Yes | 
| Ozan’s blood-covered mask | Player Made (See Notes). | --- | Yes | Yes | 
| Pack mammoth pouch | Player made (See Notes Section). | 14.4k gp | No | Yes | 
| Pack Mammoth scroll (Mammoth Feast) | Obtained by transforming a Pack mammoth pouch on the obelisk. | 1,580 gp | No | Yes |