The specific filename you provided, v2.0.20.part4.rar , indicates a specific technical context:
: This is the version number, likely one of the final patches or stable builds released by SureAI. Enderal.Forgotten.Stories.v2.0.20.part4.rar
: Because Enderal is massive (often exceeding 15–20 GB), developers and third-party mirrors often split the installer into multiple "parts" (rar volumes). The specific filename you provided, v2