A timeless puzzle game where players rotate and place falling tetrominoes to clear lines and prevent the well from filling. Its simple rules and escalating speed make it endlessly engaging.
- Designer: Alexey Pajitnov
- Initial release: 1984; numerous official versions and ports
- Genre: Puzzle
- Core mechanics: Falling tetrominoes, line clears, increasing speed levels
- Notable: Iconic Game Boy version popularized handheld gaming worldwide