Unnkulian Unventure II: The Secret of Acme is a text adventure game and the second installment in the Unnkulian series. It was developed with TADS, the Text Adventure Development System.

After escaping the Unnkulian Underworld, the player continues the adventure in search of fame and glory. The story leads to new locations such as Dawg Rock, Acme’s laboratory, and Head Quarters.

The game features extensive descriptions of its locations. It is fully keyboard controlled and uses a dozen types of commands.