Several variations and modern twists on the classic snake game have been developed over the years to add new challenges and features. Here are some examples:

Multiplayer Snake: In this version, players compete against each other or work together in real-time multiplayer mode. They can either collaborate to achieve a common goal or try to outlast and outscore their opponents.
Power-ups: Power-ups can add new elements to the game, such as speed boosts, slow motion, invincibility, or the ability to pass through walls temporarily.
Obstacles: Introducing obstacles like walls, moving barriers, or maze-like structures can increase the difficulty and require players to navigate strategically.