Related Clues:
- Popular game-app download
- Riven is its sequel
- Popular computer game with geometric shapes
- Game with four-block pieces
- 1990s video game
- Game with falling shapes
- Video game island
- Block-dropping game
- Hit PC game
- Hit 1990s PC game
- '80s video blockbuster
- Game designed by Alexey Pajitnov
- Falling-blocks game
- Bestselling game set in a deserted world
- Classic computer game, or its island world