The Snake Game, originally created by Nokia, gained immense popularity due to several key factors:

1. Inclusion on Nokia Phones: Nokia pre-installed the "Snake" game on many of its mobile phones, such as the iconic Nokia 3310. This meant that millions of users worldwide had instant access to the game without needing to download it separately.

2. Simplicity and Addictiveness: The game's simple concept, where players control a growing snake to eat food while avoiding collisions, made it easy to pick up and play. The addictive nature of trying to beat one's high score kept players engaged for hours.

3. Nostalgia and Retro Appeal: "Snake" evoked a sense of nostalgia for early mobile gaming and the simplicity of arcade games, appealing to both older players who remembered its early versions and younger players who appreciated its retro charm.

4. Universal Appeal: The game's mechanics were easy to understand and didn't require complex instructions, making it accessible to players of all ages and backgrounds.

5. Offline Play: Since "Snake" was pre-installed on Nokia phones, players could enjoy the game without needing an internet connection, making it a convenient and entertaining pastime in various situations.