When creating your character, you may choose a gender: male or female. This affects a number of events in the game:
- Female characters can lay eggs when polymorphed into a monster that lays eggs
- Any eggs found and carried by male characters have a 50/50 chance of hatching tame. Eggs found and carried by females will never hatch tame. (Eggs laid by you will always hatch tame, regardless of your current gender.)
- Male characters are seduced by the succubus, female characters by the incubus. During seduction, incubi will put a ring of adornment on your hand if you have one, while succubi will steal them.
- Male characters are "seduced" by nymphs while female characters will be "charmed".
Monsters can be gendered (including neuter), but this affects only the pronoun used to describe their actions.
In SLASH'EM, Yeomen always start as male.