Jet Set Willy technical information
- How to disassemble the original JSW engine.
 - A teleporter extension.
 - Analysis of Henry's Hoard - a game based on the JSW48 engine.
 - Analysis of the Softricks JSW editor's changes to the JSW48 engine.
 - The JSW64 room format.
 - A taxonomy of JSW game engines.
 - Some patches to the game engine.
 
File formats for other JSW versions
- The JSW2 room format.
 - The Atari ST JSW room format.
 - The Commodore 64 JSW room format.
 - The Dragon 32 JSW room format.
 
Manic Miner technical information
- Disassembly of the Manic Miner engine.
 - A patch to Manic Miner which allows any room to have Solar Power, Eugene, Kong or Skylab.
 - Differences between the Bug-Byte and Software Projects game engines
 - The Dragon 32 Manic Miner room format.
 
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John Elliott
1-1-2006