The development phase of Rummy games encompasses coding, programming, and integration of various features and functionalities. Multiplayer capabilities, AI opponents, real-time gameplay, and secure payment gateways are some of the essential components that Rummy game development companies focus on incorporating into their products. Additionally, customization options, such as different variations of Rummy, tournament modes, and social interaction features, add depth and replay value to the game. Throughout the development process, rigorous testing and quality assurance procedures are implemented to identify and rectify any bugs or performance issues, ensuring a seamless gaming experience for players.