MLB The Show 21, developed for PlayStation 5, offers an engaging baseball gaming experience with enhanced moment-to-moment match action. Players can choose from multiple game modes, catering to both newcomers and seasoned players. The game introduces the ability to create a two-way star, allowing users to take their Ball Player from Road To The Show into various other modes.

Key improvements include enhanced Franchise features and updates to March To October, which facilitate better decision-making for team management. The Diamond Dynasty mode has been streamlined for clarity, offering new rewards paths and a roster of Legends. Additionally, the game presents tailored gameplay styles—Casual, Simulation, and Competitive—each designed to suit different player preferences. New mechanics such as an updated pitching system and comprehensive fielding enhancements contribute to a more immersive gaming experience.