| Chest (Barrows) | 2–774 | 379/1,012, 7 rolls |
| Chest (Bryophyta's lair) (Free-to-play) | 10,000 | 5/118 |
| Chest (Bryophyta's lair) (Free-to-play) | 8,000 | 2/118 |
| Chest (Bryophyta's lair) (Members) | 10,000 | 5/118 |
| Chest (Bryophyta's lair) (Members) | 8,000 | 2/118 |
| Chest (Chaos Druid Tower) | 500 | Always |
| Chest (Dorgesh-Kaan Average) (Normal) | 1–250 | 3/7 |
| Chest (Dorgesh-Kaan Average) (Zanik's chests) | 1–250 | 1/23 |
| Chest (Isle of Souls Dungeon) | 90–190 | 20/200 |
| Chest (Laguna Aurorae) | 35,000 | Always |
| Chest (nature runes) | 3 | Always |
| Chest (Obor's lair) | 10,000–15,000 | 6/118 |
| Chest (Obor's lair) | 12,000–20,000 | 4/118 |
| Chest (Pandemonium Cave) | 10,000 | Always |
| Chest (Rogues' Castle, inside) | 8–25 | 1/128 |
| Chest (Rogues' Castle) (Hard Wilderness Diary) | 5,625 | 6/66 |
| Chest (Rogues' Castle) (Medium Wilderness Diary) | 4,500 | 6/66 |
| Chest (steel arrowtips) | 20 | Always |
| Chest (Tombs of Amascut) | 1,126–51,285 | 1/27, 3 rolls |
 Chilled jelly | 44 | 27/128 |
| Chilled jelly | 102 | 27/128 |
| Chilled jelly | 220 | 9/128 |
| Chilled jelly | 11 | 6/128 |
| Chilled jelly | 460 | 2/128 |
 Choke devil | 2,000–4,000 | 32/128, 3 rolls |
| Citizen (Aldarin) | 3 | Always |
 Citizen (1) | 3 | Always |
| Citizen (Civitas illa Fortis) | 3 | Always |
 Citizen (1) | 3 | Always |
 Citizen (1) | 3 | Always |
 Citizen | 3 | Always |
| Closed chest (Klenter's Pyramid) | 50 | Always |
 Cobado | 100,000 | Always |
 Cockathrice | 15 | 16/128, 3 rolls |
| Cockathrice | 5 | 12/128, 3 rolls |
| Cockathrice | 28 | 12/128, 3 rolls |
| Cockathrice | 62 | 4/128, 3 rolls |
| Cockathrice | 42 | 3/128, 3 rolls |
| Cockathrice | 1 | 1/128, 3 rolls |
 Cockatrice | 15 | 16/128 |
| Cockatrice | 5 | 12/128 |
| Cockatrice | 28 | 12/128 |
| Cockatrice | 62 | 4/128 |
| Cockatrice | 42 | 3/128 |
| Cockatrice | 1 | 1/128 |
| Coffin (Hallowed Sepulchre) (High) | 17,500–25,000 | 1/10 |
| Coffin (Hallowed Sepulchre) (Low) | 1,500–3,000 | 1/10 |
| Coffin (Hallowed Sepulchre) (Mid) | 7,500–12,500 | 1/10 |