The file refers to a specific version of the sci-fi colony sim RimWorld , likely a distribution of the game's 1.4 content update .
While corresponds to a legitimate build from the development of RimWorld 1.4 (roughly late 2022), a .rar file of the full game from an unofficial source carries significant risks. File Authenticity & Safety
Are you having this specific version, or are you trying to verify if the file you downloaded is safe? RimWorld Patch 1.4 Update | Reveal, Reaction, Discussion