In Twitter Island, players explore a vibrant island populated by 10,000 unique bird characters, each representing a Twitter username. The gameplay mechanics involve simple navigation using keyboard controls or a gamepad, allowing players to interact with the environment and discover various bird personalities.

The storyline of Twitter Island revolves around the player's journey to find themselves or make new friends while interacting with the diverse bird inhabitants. Each bird offers a unique perspective, contributing to a whimsical and lighthearted narrative.

Twitter Island stands out with its distinctive use of real Twitter usernames in a fictional context, creating a playful commentary on social media culture. The game emphasizes a non-invasive approach to user data, ensuring that no personal information is utilized beyond the usernames.