From publisher blurb:
WELCOME TO THE WRETCHED HIVE!
A titanic insect god, constantly giving birth to endless larvae. An assassin whose task is to poison the enemies of her faith. Twisted hybrids, half human and half bee, created by devilish biomancers. A pagan cult whose temple was invaded by demons. And these are the good guys! Welcome to the Wretched Hive!
An OSR adventure for low-level characters, easily adapted to high-level characters by switching goals - rescue the prisoners and run, or face the demons and take down the hive!
Although you can use this with any OSR system of your choice, it is especially suited for medieval dark fantasy games, such as Dark Fantasy Basic.