WOLF RPG Editor is a game construction tool that can create complex role playing games. It is often regarded as being aimed at advanced users, so keep this in mind if you intend to use it. It was developed by SmokingWOLF (SilverSecond) in Japan.
Will work with Windows 10 & earlier. Installation instructions: Download and Unzip files, and watch the video first. Resource Hacker is the program I used to help me translate and adjust WOLF RPG Editor into its English version.