Dystopian or post-apocalyptic fantasy is a subgenre of speculative fiction that combines elements of fantasy with the themes and settings commonly associated with dystopian or post-apocalyptic science fiction. In this subgenre, the world is often depicted as a grim and desolate place, often following a catastrophic event or societal collapse. However, alongside these harsh environments, elements of magic, mythical creatures, and fantastical elements are present. Here are some key characteristics of dystopian or post-apocalyptic fantasy:

Bleak Setting:
The setting in dystopian or post-apocalyptic fantasy is typically a bleak and devastated world. It may result from a magical catastrophe, the return of dark forces, or a combination of both.

Magical Elements:
Despite the bleakness, magical elements are a significant part of the world. Magic and supernatural creatures may be responsible for the world's downfall or play a role in the narrative.

Survival Themes:
The stories often revolve around themes of survival and resilience as characters navigate a harsh and unforgiving environment. They must contend with dangerous creatures, hostile factions, and scarce resources.

Heroic Journeys:
Just like in traditional fantasy, there are often heroic journeys and quests. Characters may be on a mission to restore balance, find a lost artifact, or confront a dark power.

Exploration of Morality:
Dystopian or post-apocalyptic fantasy often explores complex moral and ethical dilemmas, as characters face difficult choices and navigate ambiguous situations.

Blend of Genres:
This subgenre blends elements of traditional fantasy with dystopian or post-apocalyptic science fiction, creating a unique and often darkly imaginative world.

Notable examples of dystopian or post-apocalyptic fantasy include S.

M. Stirling's "The Change" series, N.

K. Jemisin's "The Broken Earth" trilogy, and Stephen King's "The Dark Tower" series. These stories merge the elements of traditional fantasy with post-apocalyptic settings, offering readers a fusion of magic and the supernatural with the challenges of surviving in a harsh and transformed world.