| Maw of Kolthregar (Normal mode) [] | 1 | 1/1,600 |
| Medium parcel [] | 1 | Uncommon |
| Menaphite guard captain (Normal mode) [] | 1 | 1/1,600 |
| Mighty Blood reaver [] | 1 | 1/2,832.09 |
| Milla [] | 1 | 1/59,918.63 |
| Minotaur [] | 1 | 1/14,979.66 |
| Minotaur [] | 1 | 1/14,979.66 |
| Mithril dragon [] | 1 | 1/1,040.13 |
| Molanisk [] | 1 | 1/2,139.95 |
| Monk of Chaos (Normal mode) [] | 1–2 | 1/25 |
| Monk of Chaos (Normal mode) [] | 1 | 1/1,600 |
| Monk of Chaos (Story mode) [] | 1 | 200/10,000 |
| Moss giant [] | 1 | 1/3,744.91 |
| Moss golem [] | 1 | Very rare |
| Motherlode Maw [] | 1 | 1/137 |
| Mountain troll [] | 1 | 1/2,995.93 |
| Mourner [] | 1 | 1/2,995.93 |
| Mummy (Jaldraocht Pyramid) [] | 1 | 1/30,017.83 |
| Mummy [] | 1 | 1/30,017.83 |
| Mummy (Ullek) [] | 1 | 1/30,017.83 |
| Mutated bloodveld [] | 1 | 1/1,497.97 |
| Mutated zygomite (Level 58) [] | 1 | 1/3,744.91 |
| Mutated zygomite (Level 65) [] | 1 | 1/3,744.91 |
| Mystery box (random events) [] | 1 | Very rare |
| Nechryael [] | 1 | 1/1,557.56 |
| Nechryael [] | 1 | 1/653.21, 3 rolls |
| Nechryael [] | 1 | 1/2,949.12 |
| Necromancer [] | 1 | 1/2,949.12 |
 Nex (Normal)[] | 1 | 1/533.33, 2 rolls |
| Nightmare [] | 1 | 1/1,066.67 |
| Nikita [] | 1 | 1/59,918.63 |
| Nikolai [] | 1 | 1/59,918.63 |
| Nodon artificer [] | 1 | 1/1,066.67 |
| Nodon enforcer [] | 1 | 1/1,066.67 |
| Nodon engineer [] | 1 | 1/1,066.67 |
| Nodon guard [] | 1 | 1/1,066.67 |
| Nodon hunter [] | 1 | 1/1,066.67 |
| Oak casket [] | 1 | 5/128 |
| Ogre statue [] | 1 | 1/7,372.8 |
| Ol' Sawtooth (Normal mode) [] | 1 | 1/1,600 |
| Olivia the Chronicler (Normal mode) [] | 1 | 1/1,600 |
| Onyx dragon [] | 1 | 1/1,600 |
| Onyx dragon (Dragonkin Laboratory) (Normal mode) [] | 1 | 1/1,600 |
| Oreb, the Magister (Normal mode) [] | 1 | 1/1,600 |
| Orikalka [] | 1 | 1/1,600 |
| Ork statue [] | 1 | 1/11,566.32 |
| Osseous [] | 1 | 1/1,600 |
| Otherworldly being [] | 1 | 1/5,072.48 |