Here are some variations and modern versions of the classic snake game:

1. Slither.io: This multiplayer online game puts a twist on the traditional Snake gameplay by allowing players to control a worm-like creature that grows longer as it consumes glowing orbs while trying to avoid colliding with other players' worms.

2. Snakebird: A puzzle game that combines elements of Snake with strategic puzzle-solving. Players control colorful snake-bird hybrids to maneuver through obstacles and reach the end goal.

3. Snake Rewind: A modern take on the classic Snake game with updated graphics and new features. Players can collect special fruit to unlock power-ups and rewind time to correct mistakes.