| Infernal Mage [] | 1 | 1/29,208.25, 3 rolls |
| Iorwerth guard [] | 1 | 1/7,130.92 |
| Iorwerth scout [] | 1 | 1/7,130.92 |
| Irina [] | 1 | 1/1,869,327.69 |
| Iron dragon [] | 1 | 1/6,625.44 |
| Jade the Unruly (Normal mode) [] | 1 | 1/4,278.55 |
| Jelly [] | 1 | 1/233,665.96 |
| Jennella [] | 1 | 1/1,869,327.69 |
| Jeroen [] | 1 | 1/1,869,327.69 |
| Jogre [] | 1 | 1/470,982.95 |
| Jogre [] | 1 | 1/470,982.95 |
| Joseph [] | 1 | 1/1,869,327.69 |
| Jungle strykewyrm [] | 1 | 1/92,188.52 |
 K'ril Tsutsaroth (Senntisten)[] | 1 | 1/1,811.36 |
| K'ril Tsutsaroth (Hard mode) [] | 1 | 8/128 |
| Kal'gerion demon [] | 1 | 1/2,852.37 |
| Kal'gerion demon (The Shadow Reef) (Normal mode) [] | 1 | 1/4,278.55 |
| Kalphite Guardian [] | 1 | 1/93,466.38, 2 rolls |
| Kalphite Guardian [] | 1 | 1/7,130.92 |
| Kalphite King [] | 1 | 1/1,426.18, 3 rolls |
| Kalphite Queen [] | 1 | 1/42,484.72, 4 rolls |
| Kalphite Soldier [] | 1 | 1/116,832.98 |
| Kalphite Worker [] | 1 | 1/233,665.96 |
| Killerwatt [] | 1 | 1/233,665.96 |
| King Black Dragon (Members) [] | 1 | 1/100 |
| King Black Dragon (Members) [] | 1 | 1/6,167.28 |
| Knight of Ardougne [] | 1 | 1/93,466.38 |
| Kraka [] | 1 | 1/93,466.38 |
| Kree'arra (Hard mode) [] | 1 | 1/2,852.37 |
| Kree'arra (Normal) [] | 1 | 1/2,817.97 |
| Ksenia [] | 1 | 1/1,869,327.69 |
| Laboratory slime (Big (Normal mode)) [] | 1 | 1/4,278.55 |
| Lady Himiko (Normal mode) [] | 1 | 1/4,278.55 |
| Lampenflora [] | 1 | 1/2,852.37 |
| Lanzig [] | 1 | 1/1,869,327.69 |
| Lava spider (Normal mode) [] | 1 | 1/4,278.55 |
| Lava strykewyrm [] | 1 | 1/2,852.37 |
| Lava strykewyrm (Dragonkin Laboratory) (Normal mode) [] | 1 | 1/4,278.55 |
| Lensa [] | 1 | 1/1,869,327.69 |
| Lesser demon [] | 1 | 1/38,944.33 |
| Lesser demon [] | 1 | 1/38,944.33 |
| Lesser demon [] | 1 | 1/38,944.33 |
| Lesser reborn mage [] | 1 | 1/52,157.58 |
| Lesser reborn ranger [] | 1 | 1/52,157.58 |
| Lesser reborn warrior [] | 1 | 1/52,157.58 |
| Lev [] | 1 | 1/1,869,327.69 |
| Liliya [] | 1 | 1/1,869,327.69 |
| Liverworts [] | 1 | 1/2,852.37 |