| Rare drop table (Rare table) [] | 35–45 | 2/64 |
| Rathis [] | 35–45 | 1/4,800 |
| Ravenous ghoul [] | 35–45 | 1/262,144 |
| Red dragon [] | 1 | Always |
| Red dragon [] | 35–45 | 1/104,857.6 |
| Red dragon (Dragonkin Laboratory) (Normal mode) [] | 35–45 | 1/4,800 |
| Red dragon (Dragonkin Laboratory) (Normal mode,Story mode) [] | 1 | Always |
| Reinforced chest (Dorgesh-Kaan) [] | 6–10 | Common |
| Renegade Menaphite soldier (Normal mode) [] | 35–45 | 1/4,800 |
| Retrieved lost items (lesser) [] | 4–6 | Common |
| Reward box [] | — | Unknown |
| Reward Shop (Soul Wars) (Random loot) [] | 11 | Uncommon |
| Rewards (Barbarian Assault) (Gamble points - high items) [] | 27 | Common |
| Rewards (Barbarian Assault) (Gamble points - low items) [] | 8 | Common |
| Ripper Demon [] | 35–45 | 1/3,051.02 |
| Ripper dinosaur [] | 35–45 | 1/3,200 |
| Rock [] | 35–45 | 1/104,857.6 |
| Rock crab [] | 35–45 | 1/524,288 |
| Rock golem [] | 35–45 | 1/262,144 |
| Rock lobster [] | 35–45 | 1/262,144 |
| Rock slug [] | 35–45 | 1/131,072 |
| Rune dragon [] | 35–45 | 1/1,600 |
| Salarin the Twisted [] | 35–45 | 1/524,288 |
| Salawa akh [] | 35–45 | 1/4,800 |
| Sangri the Red (Normal mode) [] | 1 | Always |
| Sangri the Red (Normal mode) [] | 35–45 | 1/4,800 |
| Sangri the Red (Story mode) [] | 1 | Always |
| Sanguine crawler [] | 35–45 | 1/65,536 |
| Sarkhan the Serpentspeaker (Normal mode) [] | 35–45 | 1/4,800 |
| Scabaras lancer [] | 35–45 | 1/37,449.14, 2 rolls |
| Scabaras mage [] | 35–45 | 1/37,449.14, 2 rolls |
| Scabaras ranger [] | 35–45 | 1/37,449.14, 2 rolls |
| Scarab akh [] | 35–45 | 1/4,800 |
| Scarab mage [] | 35–45 | 1/37,449.14 |
| Scutarius [] | 35–45 | 1/4,800 |
| Sea crocodile (Normal mode) [] | 35–45 | 1/4,800 |
| Sea horror (Normal mode) [] | 35–45 | 1/4,800 |
| Sea Snake Hatchling [] | 35–45 | 1/524,288 |
| Sea Snake Young [] | 35–45 | 1/524,288 |
| Seasinger priestess [] | 35–45 | 1/262,144 |
| Seeker [] | 35–45 | Very rare |
| Seiryu the Azure Serpent (Normal mode) [] | 35–45 | 1/4,800 |
| Seren archer [] | 35–45 | 1/103,219.2 |
| Seren mage [] | 35–45 | 1/103,219.2 |
| Seren spirit [] | 35–45 | 1/32 |
| Seren warrior [] | 35–45 | 1/103,219.2 |
| Shadow demon [] | 35–45 | 1/99,123.2 |
| Shadow nihil [] | 35–45 | 1/3,200 |