Iowa Jack and the Crystals of Chaos (Commodore 128)

Take on the role of Iowa Jack - adventurer, tomb raider and pilot for hire - and head off in search of a legendary treasure in this old school text adventure game. 

This C128 version is for 80 columns. Full 64K VDC RAM is needed to fully show bitmaps (they will be partially shown if you have a stock 16K VDC).

Use simple two word commands like “GET SHOVEL” or “USE WHIP”. Type HELP at any time for a list of verbs.  

This is a nice adventure in that there are no deaths or dead ends (soft locks). This is an easy game overall, so it’s perfect for newcomers to the genre, or advanced players who want a quick adventure break. 

Accepted words:

GET (or TAKE) – GET an object

USE – USE an object

LOOK – LOOK at the current room

INV (or I) – Inventory

SAVE – Save the current game to disk

LOAD – Load a saved game from disk

QUIT – Quit the game back to Commodore Basic

N, S, W, E – travel

Walkthrough:

A full walkthrough of the game is included. Select “READ WALKTHROUGH” from the main menu to read it.  

Version Change Log:

V1.0 - Initial release

V1.1 - Minor changes to some of the bitmaps. Also added code to clear SID chip after Star Dust music plays because sometimes a note would get stuck and continue to play in the background.

V1.2 - There is an issue with 64K VDC detection on real hardware - so I added option to use 64K anyways at start up.

V1.3 - Some minor changes to some of the bitmaps

V1.4 - Added some text and fixed a typo in the temple section. Also fixed a crash that would happen if you tried to get an object that you were already carrying.