Jewels of Darkness: Colossal Adventure

Colossal Adventure is a text adventure inspired by the earliest mainframe adventures. The hero must rescue the elves and locate fifteen pieces of treasure while navigating many dark areas where lights and batteries are valuable.

Players must contend with vicious dwarves, which can be killed using axes, and manage a carrying limit of four objects. Useful items include a newspaper, keys, and sandwiches. The game supports spell names, dropping items for specific purposes, catching a bird, standard directions, and the IN and OUT commands.

Developed and published by Level 9 Computing, Colossal Adventure was released in 1983 for Amstrad CPC, Atari 8-bit, BBC Microcomputer System, Commodore C64/128/MAX, MSX, and Sinclair ZX Spectrum.