| Name | Attribute | Level | Type |
|---|---|---|---|
| Deepsea Kaiju Kronkite | - | 38 | Boss Monster |
| Deepsea Kaiju Kronkite | 80 | Boss Monster | |
| Deepwater Bite | - | 5 | General |
| Deepwater Fang | - | 5 | General |
| Deepwater Tooth | - | 5 | General |
| Defeat the Toxic Mantiscythes. | - | 1 | General |
| Defeated Ancient Divine Soldier | - | 1 | General |
| Defense Commander | 39 | Elite Monster | |
| Defense Commander | 59 | Elite Monster | |
| Defense Commander | 39 | Elite Monster | |
| Defense Commander | 59 | Elite Monster | |
| Defense Device Charger | 98 | General Monster | |
| Defense Device Guard | 99 | Elite Monster | |
| Defense Device Guardian | 71 | Elite Monster | |
| Defense Fence | - | 1 | General |
| Defense Fence | - | 1 | General |
| Defense Fence | - | 1 | General |
| Defense System Core | 68 | General Monster | |
| Defense System Core | 70 | General Monster | |
| Defense System Core | 63 | General Monster | |
| Defense System Core | 63 | General Monster | |
| Defense System Core | 63 | General Monster | |
| Defensive Device Charger | 70 | General Monster | |
| Defensive Source | - | 91 | General Monster |
| Dehydrated Small Tree | - | 1 | General |
| Delayed Treatment | - | 1 | General |
| Delia | - | 1 | General |
| Delirium Nymph | 71 | General Monster | |
| Delivery Company Boss Marceline | - | 1 | General |
| Demon Blade Rampage | - | 1 | General |
| Demon Faction | - | 1 | General |
| Demon Knight | 84 | Elite Monster | |
| Demon Knight | 69 | Elite Monster | |
| Demon Knight | 84 | Elite Monster | |
| Demon Knight | 71 | Boss Monster | |
| Demon Knight | 69 | Elite Monster | |
| Demon Lord Babbit | - | 1 | General |
| Demon Mount | 69 | Elite Monster | |
| Demon Mount | 84 | Elite Monster | |
| Demon Mount | 69 | Elite Monster | |
| Demon Mount | 84 | Elite Monster | |
| Demon Plague Spirit | 106 | General Monster | |
| Demon Plague Spirit | 106 | General Monster | |
| Demon Plague Spirit | 106 | General Monster | |
| Demon Sonata | - | 1 | General |
| Demon Star Guard | 98 | General Monster | |
| Demon Star Shadow Knight | 98 | General Monster | |
| Demon of Lava | 90 | General Monster | |
| Demon of Lava | 90 | General Monster | |
| Demon-Slaying Arrow | - | 1 | General |