You can find various historical releases, such as versions 1.13.0 and 1.13.3, on APKMirror .
This site maintains an archive of Older versions of Otherworld Legends for Android. download-otherworld-legends-v1-13-2
If you specifically need version (e.g., for compatibility or testing), historical versions are often hosted on reputable APK repositories: You can find various historical releases, such as versions 1