Peasant
Goblin (in Heroes 4, Goblin Knight)
Centaur
Fairy
Archer (in Heroes 4, Crossbowman)
Orc
Gargoyle
Dwarf
Griffin
Elf
Swordsman (in Heroes 4, Crusader)
Minotaur
Ghost
Rider (in Heroes 4, Champion)
Hydra
Unicorn
Cyclops
Dragon (Creature of Darkness)
Phoenix
Djinn
Here is a complete list of creatures that appeared in the first five Heroes games.
Thanks to the guide for Heroes 1! Hehe.
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