| Name | Size | Tier | Heroes | Tags |
|---|
| Noxious Potion | Small | Bronze | Mak | Potion |
| Nullfrost Altar | Large | Legendary | Common | Relic |
| Oblivion Cannon | Large | Gold | Stelle | TechWeapon |
| Oblivion Core | Medium | Legendary | Dooley | CoreTech |
| Oblivion Vortex | Medium | Gold | Stelle | Tech |
| Observatory | Large | Silver | Stelle | Property |
| Octopus | Medium | Legendary | Common | AquaticFriendWeapon |
| Oil Lantern | Medium | Silver | Mak | Tool |
| Oinkment | Small | Silver | Pygmalien | |
| Old Barrel | Medium | Bronze | Common | |
| Old Saltclaw | Small | Silver | Vanessa | AquaticFriendWeapon |
| Old Sword | Small | Bronze | Common | Weapon |
| Omega Ray | Small | Silver | Dooley | RayTech |
| Oni Mask | Medium | Silver | Vanessa | ApparelTech |
| Open Sign | Medium | Gold | Pygmalien | |
| Optical Augment | Small | Silver | Mak | ApparelTool |
| Orange Julian | Medium | Silver | Vanessa | Friend |
| Orange Piggles A | Small | Bronze | Pygmalien | Toy |
| Orange Piggles L | Small | Bronze | Pygmalien | Toy |
| Orange Piggles R | Small | Bronze | Pygmalien | Toy |
| Orbital Polisher | Small | Silver | Stelle | Tool |
| Orly | Small | Bronze | Mak | Friend |
| Ornithopter | Small | Bronze | Stelle | Vehicle |
| Ouroboros Statue | Medium | Silver | Mak | Relic |
| Outlands Terror | Large | Gold | Karnok | FriendWeapon |
| Oven | Large | Diamond | Jules | Tool |
| Oven Mitts | Medium | Silver | Jules | ApparelTool |
| Oxygen Mask | Medium | Bronze | Stelle | ApparelTool |
| Oxygen Tank | Medium | Silver | Stelle | Tool |
| Palanquin | Large | Silver | Mak | DinosaurVehicle |
| Pancakes | Small | Bronze | Jules | Food |
| Pantry | Large | Diamond | Jules | Property |
| Paper Airplane | Small | Bronze | Stelle | ToyVehicle |
| Parachute | Medium | Silver | Stelle | Vehicle |
| Parts Picker | Small | Gold | Stelle | Drone |
| Party Float | Large | Gold | Dooley | TechVehicle |
| Pasta | Small | Bronze | Jules | Food |
| Pasta Maker | Medium | Bronze | Jules | Tool |
| Pauldrons | Medium | Silver | Karnok | Apparel |
| Pawn Shop | Large | Bronze | Pygmalien | Property |
| Peacewrought | Medium | Bronze | Mak | Relic |
| Pearl | Small | Bronze | Vanessa | Aquatic |
| Pelt | Small | Bronze | Common | Loot |
| Pendulum | Medium | Diamond | Mak | RelicTool |
| PenFT | Small | Silver | Pygmalien | TechToy |
| Penthouse | Large | Legendary | Common | Property |
| Pepper Spray | Small | Bronze | Pygmalien | |
| Pesky Pete | Small | Bronze | Vanessa | Friend |
| Pet Rock | Small | Bronze | Vanessa | FriendToyWeapon |
| Philosopher's Stone | Small | Bronze | Mak | Relic |