2D games are video games that use two-dimensional graphics, meaning they have width and height but no depth. These games often feature simple visuals, such as sprites and backgrounds, which can be easily rendered on screens. Popular examples include platformers like Super Mario Bros. and puzzle games like Tetris. In 2D games, players typically navigate through levels, solve puzzles, or defeat enemies using straightforward controls. The gameplay often focuses on mechanics like jumping, shooting, or collecting items. Despite their simplicity, 2D games can be engaging and enjoyable for players of all ages, offering a nostalgic experience for many.