Diabloesque

Diabloesque is a phrase encompassing all games which are dark fantasy themed, have a similar playing experience or atmosphere to the games in the Diablo series or a comparable history and lore. Diabloesque is not limited to only games but can also be applied to and used as a definition for artwork or fiction which follows the same dark fantasy theme of the games and lore or the official Diablo artwork published by Blizzard and Blizzard North.

-Diablo is a dark fantasy-themed hack and slash action role-playing game developed by Blizzard North and released by Blizzard Entertainment in December, 1996
-Esque
Suffix
In the manner of; resembling