LEGO Island Versions

There are at least two retail versions of Lego Island known to exist. The most common is the September 8th 1997 build, and the other is a much rarer earlier build dated August 8th 1997.

A beta version dating to July 25th 1997 is claimed to exist, according to a post on Rock Raiders United.

Differences

 * Key files have been modified and recompiled: This is relevant for any hex editing as the locations of most variables will be different between them. Any specific byte changes will need to accommodate both versions to work correctly for all people.


 * Different dialogue: After entering a name in the August build, the Infomaniac says "Good job! Welcome to Lego Island!" before saying "Okay, let's get started!". In the September build, this line is cut and the Infomaniac starts at "Okay, let's get started!".


 * Changes in functionality: During a building sequence, Bill Ding instructs you to hit the triangle when you are finished. In the August build, this is correct as the sequence does not end until you hit the triangle. In the September build, the sequence will auto-complete when you place the last necessary brick. This makes Bill Ding's dialog inaccurate in the September build.

Identifying Versions
To identify which version you have, you can check the "last modified date" of the files for whether the files were last modified in August or in September. Additionally, below are MD5 hashes of all relevant files to determine which version you have:

08/08/1997 Build
764e23e8a713e1b66f146da8d9c49576 *CONFIG.EXE d3dc01ad31d5392be7660c1a08de2400 *ISLE.EXE 0b4cb9e080dbab1f1fac7c5b8593080d *LEGO1.DLL 764e23e8a713e1b66f146da8d9c49576 *LEGOISLE.EXE

09/08/1997 Build
92d958a64a273662c591c88b09100f4a *CONFIG.EXE f6da12249e03eed1c74810cd23beb9f5 *ISLE.EXE 4e2f6d969ea2ef8655ba3fc221a0c8fe *LEGO1.DLL 92d958a64a273662c591c88b09100f4a *LEGOIsle.exe