The keyword "free" is a red flag for security risks. Version 30.2 is no longer available on Google Play (which only hosts v6.0+ and newer). Consequently, you must rely on third-party APK repositories. This is a minefield of malware.
: When installing older versions, you may need to disable "Auto-update" in the Play Store to prevent the game from automatically overwriting your legacy build with the latest version. Indian Train Simulator: Game - Apps on Google Play indian train simulator old version 30 2 free