recomp.gg
LEGO Island
LEGO Island cover art

DecompilationDownload

isledecomp

Brings back LEGO Island · By isledecomp

Get it on GitHubHow to play

Plays on your own device, not in a browser tab. Opens github.com in a new tab.

Ways to play

  • Download

    github.com

    Get it on GitHub

    Windows

    How to play
    1. You need your own LEGO Island, the English version 1.1: its README shows how to check yours.
    2. Take the rebuilt CONFIG.EXE, ISLE.EXE and LEGO1.DLL from the project's continuous release, or build them as its README explains.
    3. Swap them for the originals in LEGO Island's install folder: by default under Program Files (x86) on 64-bit Windows, under Program Files on 32-bit.
    4. If it reports a missing d3drm.dll (Windows has not shipped it since XP), put a copy beside the executables, as its README explains.
    5. It runs only on Windows: for other systems and the web, its README points to isle-portable.

    Written by recomp.gg from its README, read Oct 12, 2026.

Details

What
The original binary turned back into source code, function by function.
Code
github.com/isledecomp/isle3.5K stars on its repositoryLast updated Sep 18, 2026
License
LGPL-3.0
Release
continuous, Sep 18, 2026
Listed
Oct 9, 2026

Its game

News

All news
  1. Release · Sep 18, 2026continuous
  2. Hacker NewsPost · Hacker News · Dec 23, 2024Show HN: Complete decompilation of Lego Island
  3. Hacker NewsPost · Hacker News · Sep 14, 2023Lego Island Decompilation

Related projects

Used by
isle-portable

From recomp.gg's How to play, read Oct 13, 2026, recomp.gg shelf, read Oct 11, 2026, SubmitGame's list, read Oct 11, 2026, the GitHub API, read Oct 20, 2026 and the GitHub API, read Oct 11, 2026. Where How to play names the page it was written from, recomp.gg wrote the steps from it; elsewhere they are the ones every way of its kind shares, and the project's repository or site has the rest.