: The .rar extension indicates a compressed archive. The .part1 suffix means the full game installer is split into multiple smaller files; you cannot use this file alone to install the game without the subsequent parts (part2, part3, etc.).

Downloading files from unofficial sources like "CODEX" releases carries significant risks:

: The DLC includes two scenarios ("Rising Sun" and "Twisted Paths") and three new maps: All Japan, Central Japan, and Southern Japan.

: Piracy is illegal and violates copyright laws in most regions.

: CODEX was a major warez group that officially retired in February 2022. This file is one of their later releases for the Railway Empire series.

: Pirated files are frequently bundled with trojans, miners, or ransomware that can compromise your data or hardware.

: Players manage new goods like Sake, Soy Sauce, and Rice . It also introduces a "Great Commute" focus, where passenger transport and city connections are prioritized due to Japan's unique geography. Technical Context of the File