Best free "MUD" games

GAME GENRE – Multi-User Dungeons (MUDs) are text-based online role-playing games where players explore virtual worlds, complete quests, and interact with others in real time. Often set in fantasy or sci-fi settings, MUDs rely on descriptive text to convey environments, characters, and actions, requiring imagination to visualize the world. Players create characters, gain experience, acquire items, and engage in combat or puzzles, while social interaction—through chatting, trading, or forming parties—is central. Despite minimal graphics, MUDs offer deep gameplay, persistent worlds, and complex storytelling. They are the precursors to modern MMOs, valued for their community-driven, immersive, and highly interactive experiences.