| Kalphite Soldier [] | 65–85 | 1/65,536 |
| Kalphite Worker [] | 65–85 | 1/131,072 |
| Killerwatt [] | 65–85 | 1/131,072 |
| King Black Dragon (Members) [] | 10 | 7/100 |
| King Black Dragon (Members) [] | 65–85 | 1/3,459.46 |
| Knight of Ardougne [] | 65–85 | 1/52,428.8 |
| Kraka [] | 65–85 | 1/52,428.8 |
| Kree'arra (Hard mode) [] | 65–85 | 1/1,600 |
| Kree'arra (Normal) [] | 65–85 | 1/1,580.7 |
| Ksenia [] | 65–85 | 1/1,048,576 |
| Laboratory slime (Big (Normal mode)) [] | 65–85 | 1/2,400 |
| Lady Himiko (Normal mode) [] | 65–85 | 1/2,400 |
| Lampenflora [] | 65–85 | 1/1,600 |
| Lanzig [] | 65–85 | 1/1,048,576 |
| Lava spider (Normal mode) [] | 65–85 | 1/2,400 |
| Lava strykewyrm [] | 12–25 | 6/128 |
| Lava strykewyrm [] | 65–85 | 1/1,600 |
| Lava strykewyrm (Dragonkin Laboratory) (Normal mode) [] | 65–85 | 1/2,400 |
| Lensa [] | 65–85 | 1/1,048,576 |
| Lesser demon [] | 65–85 | 1/21,845.33 |
| Lesser demon [] | 65–85 | 1/21,845.33 |
| Lesser demon [] | 65–85 | 1/21,845.33 |
| Lesser reborn mage [] | 65–85 | 1/29,257.14 |
| Lesser reborn ranger [] | 65–85 | 1/29,257.14 |
| Lesser reborn warrior [] | 65–85 | 1/29,257.14 |
| Lev [] | 65–85 | 1/1,048,576 |
| Liliya [] | 65–85 | 1/1,048,576 |
| Liverworts [] | 65–85 | 1/1,600 |
| Lizard [] | 65–85 | 1/52,428.8 |
| Locust lancer [] | 65–85 | 1/18,724.57, 2 rolls |
| Locust ranger [] | 65–85 | 1/18,724.57, 2 rolls |
| Locust rider [] | 65–85 | 1/18,724.57 |
| Looting [] | 1 | Common |
| Luminous snaggler [] | 65–85 | 1/1,600 |
| Magic logs pile [{'content': 'Can only be looted once.'}] | 100 | Always |
| Magic tree [] | 1 | Always |
| Magic Tree (Farming) [] | 1 | Always |
| Magic tree (Prifddinas) [] | 1 | Always |
| Magical chest (Tier 7) [] | 3–10 | Varies |
| Magical chest (Tier 8) [] | 3–10 | Uncommon |
| Magma golem (Normal mode) [] | 65–85 | 1/2,400 |
| Manifest shadow [] | 65–85 | 1/70,400 |
| Market Guard [] | 65–85 | 1/262,144 |
| Masuta the Ascended (Normal mode) [] | 65–85 | 1/2,400 |
| Masuta the Descended (Normal mode) [] | 65–85 | 1/2,400 |
| Mature grotworm [] | 65–85 | 1/4,000 |
| Maw of Kolthregar (Normal mode) [] | 65–85 | 1/2,400 |
| Menaphite guard captain (Normal mode) [] | 65–85 | 1/2,400 |