Creature Bank
| Name | Guards | Treasure | ||||||
|---|---|---|---|---|---|---|---|---|
| Crypt | 50–60 low-tier Undead | 1000–5000  , possibly Artifact (T)
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| Cyclops Stockpile | 20–50 Cyclops | 4–10x  ,  ,  ,  ,  and 
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| Derelict Ship | 20–60 Water Elementals | 3000–6000 , possibly Artifact (T or Mi)
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| Dragon Fly Hive | 30-90 Dragon Flies | 4–12 Wyverns | ||||||
| Dragon Utopia | 16-26 Dragons | 20´000–50´000 Gold 4x Artifact (varying T to R) | ||||||
| Dwarven Treasury | 50-150 Dwarves | 2500–7500 , 2–10
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| Griffin Conservatory | 50–200 Griffins | 1–4 Angels | ||||||
| Imp Cache | 100–300 Imps | 1000–5000 , 2–6
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| Medusa Stores | 20–50 Medusas | 2000–5000 , 5–10
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| Naga Bank | 10–30 Nagas | 4000–12000 , 8–24
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| Shipwreck | 10–50 Wights | 2000–5000 , possibly Artifact
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Creature Bank is a collective term for the Adventure Map locations where a hero may fight against guards in order to receive a reward. The reward typically consists of gold and resources, but may also contain creatures or artifacts. The combat against the guards is a unique arrangement, where the hero's troops are located in the middle of the battlefield surrounded by enemies and war machines are not available. As with other battles, slain enemies do not respawn (should the hero retreat or be defeated). Visiting crypts or shipwrecks whose guards have already been defeated decreases morale by -1 until the next battle.
Naga Bank gives sulfur, which may be considered as illogical as there are three other creature banks that are coherent with the magical resource they hold and the town they represent. These three are:
- Dwarven Treasury guarded by dwarves from Rampart and holding crystal
- Imp Cache guarded by imps from Inferno and holding mercury
- Medusa Stores guarded by medusas from Dungeon and holding sulfur
The Heroes 3 HD mod addresses this by changing the Naga Bank reward from sulfur to gems. This behavior can be toggled off by unchecking the HD+ checkbox.