| Bryophyta (Members) | 7 | 3/128 |
 Callisto | 900 | 7/126 |
 Calvar'ion (Normal) | 220 | 7/128 |
 Catablepon (Level 49) | 7 | 1/101 |
 Cave kraken (Cave kraken) | 50 | 16/200 |
 Ceolburg | 2 | 1/128 |
 Chaos dwarf | 10 | 3/128 |
 Chaos Elemental | 300–500 | 8/128 |
 Chaos Fanatic | 175 | 4/128 |
 Chaos Golem (Golem) | 5–10 | 8/52 |
| Chaos rune pack | 100 | Always |
| Chest (Barrows) | 112–139 | 125/1,012, 7 rolls |
| Chest (Bryophyta's lair) (Free-to-play) | 200 | 6/118 |
| Chest (Bryophyta's lair) (Free-to-play) | 100 | 5/118 |
| Chest (Bryophyta's lair) (Members) | 200 | 6/118 |
| Chest (Bryophyta's lair) (Members) | 100 | 5/118 |
| Chest (Dorgesh-Kaan Average) (Oldak's chests) | 5–9 | 1/20 |
| Chest (Obor's lair) | 100–199 | 10/118 |
| Chest (Rogues' Castle) (Hard Wilderness Diary) | 75 | 1/66 |
| Chest (Rogues' Castle) (Medium Wilderness Diary) | 60 | 1/66 |
 Chilled jelly | 45 | 5/128 |
 Choke devil | 80 | 7/128, 3 rolls |
| Coffin (Hallowed Sepulchre) (Low) | 25–50 | 1/10 |
 Colonel Radick | 3 | 1/128 |
 Colossal Hydra | 20–50 | 9/128, 3 rolls |
| Crystal chest | 10 | 12/128 |
 Cuffs | 2 | 1/128 |
 Cyclops | 2 | 1/128 |
 Dark beast | 30 | 7/128 |
| Dark Chest | 300–500 | 25/600 |
| Dark warrior (Great Kourend) | 8 | 1/128 |
 Dark warrior (Level 145) | 8 | 1/128 |
| Dark warrior (Level 8) | 2 | 1/128 |
| Dark wizard (High level) | 4 | 6/128 |
| Dark wizard (Low level) | 5 | 6/128 |
 Donny the lad | 3 | 3/128 |
| Doom of Mokhaiotl | 50–70 | 5/104 |
 Dreadborn Araxyte | 20–30 | 5/127, 3 rolls |
 Druid | 3 | 2/128 |
 Drunken man | 2 | 1/128 |
| Duke Sucellus | 100–150 | 9/100 |
| Dust devil (Regular) | 65 | 7/128 |
 Dust devil (Wilderness Slayer Cave) | 80 | 7/126 |
| Dwarf | 2 | 4/128 |
| Earth elemental (Regular) | 2 | 7/128 |
 Earth warrior | 3 | 7/128 |
 Earthen Nagua (Normal) | 8–20 | 3/32 |
 Elder Chaos druid | 7 | 5/129 |