Image: reddit.com · OpenLocoland: bringing Locoland (a 2003 train RTS) back to Windows 10/11 with Claude Code as more native than just workarounds – decompiled engine, fixes as a
Locoland, a 2003 train RTS, brought back to Windows 10 and 11
Claude Code named the functions of Locoland's decompiled exe and wrote DLL hooks that make the 2003 game run on modern Windows.
Credits
Earliest dated source:
The full story
Locoland (Gromada, 2003) is a small real-time strategy game about armed trains. Its source code is not available, so the work started from the original exe: Ghidra decompiled it and Claude Code named functions and struct fields in plain text files, reaching all 993 engine functions. Fixes are hooks in a DLL loaded by the original exe, and Claude tested in the real game through a test mode that drives mouse and keys and takes screenshots.
It now runs on Windows 10/11 in a window or full screen up to 4K. The poster also found the developers' own map editor mode still inside the exe, switched off, and has turned it back on with an editor built around it. Multiplayer is a possible next step.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: OpenLocoland: bringing Locoland (a 2003 train RTS) back to Windows 10/11 with Claude Code as more naReddit poster: DysproholPosted
The maker's post on r/ClaudeAI.
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