A comprehensive manual for the Chroma 81 interface is currently being written. In the meantime, the following text document provides a technical description of the facilities provided by the Chroma 81 interface.

Click here to download the Chroma 81 technical description [V1.7] text file.


A tutorial describing the process of colourising existing ZX81 games, using Space Raiders by Psion as an example, has been created by Robert Kacsich. The following contains the tutorial document, along with the generated colour file.

Click here to download the Chroma 81 Colourisation Tutorial [V1.0].