Jet Set Willy

Jet Set Willy 128

JSW128 is an extension of the Jet Set Willy engine for 128k computers, allowing games with up to 256 rooms.

• Download page
• Source for some of the changes made to JSW128
• Documentation

Jet Set Willy Editor

The Jet Set Willy Editor is a PC-hosted program (it works on Windows, Linux and BeOS). It can edit games based on the original Manic Miner and JSW engines, or my improved JSW128 and JSW64 versions.

• Download page

JSW64

JSW64 is a newer extension of the Jet Set Willy engine for 128k computers; it allows fewer rooms than JSW128, but more sophisticated room layouts.

• Download page
• JSW64 screenshots
• Internal memory formats

Games written using JSW128

I used to list the JSW128 games people had written here, but Andrew Broad does this much better than I do.

Technical information

• Information on JSW, Manic Miner and Henry's Hoard
• The music format used in JSW128
• A taxonomy of JSW engine versions

John Elliott 30 April 2005