What are the roles and responsibilities for Video game Designer ?

• A video game developer designs core features of video games. 
• Create core game features including storylines, role-play mechanics, and character biographies for a new video game or game franchise. 
• Create and maintain design documentation.
• Guide and collaborate with production staff to produce games as designed.
• Balance and adjust gameplay experiences to ensure the critical and commercial success of the product. 
• Provide feedback to designers and other colleagues regarding game design features. 
• A video game developer devise missions, challenges, or puzzles to be encountered in gameplay. 
• They guide design discussions between development teams. 
• Develop and maintain design level documentation, including mechanics, guidelines, and mission outlines. 
• Create and manage documentation, production schedules, prototyping goals, and communication plans in collaboration with production staff. 
• They present new game design concepts to management and technical colleagues, including artists, animators, and programmers. 
• Conduct regular design reviews throughout the game development process. 
• Solicit, obtain, and integrate feedback from design and technical staff into original game design. 
• They document all aspects of formal game design, using mock-up screenshots, sample menu layouts, gameplay flowcharts, and other graphical devices. 
• Provide feedback to production staff regarding technical game qualities or adherence to the original design. 
• Prepare two-dimensional concept layouts or three-dimensional mock-ups.