You expect a polished commercial product, don't want to risk malware, or just want a quick plug-and-play game. Instead, play Streets of Rage 4 or River City Girls – or the official Ragnarok: The Animation RPGs.
Overall Rating: ⭐⭐⭐⭐☆ (4/5) – Great for fans of beat 'em ups and Ragnarok lore, but beware of sketchy sources.
After installing, look for the "RBO Extra Patch" (adds a new character: Bard/Dancer). That’s the true full experience. Just scan it first. Have you played RBO? Share your class favorite in the comments (Thief gang, where you at?). Stay safe, and may the Porings be with you.