Rusty Sword: Vanguard Island is an engaging top-down adventure game designed for iPhone users, drawing inspiration from classic 16-bit games. The game features a small island overworld and a vast non-linear dungeon filled with various monsters to battle. Players embark on a quest to uncover the hidden Vanguard Relic, navigating through a richly detailed environment that promises nostalgia through its art style and soundtrack.

The gameplay offers a non-linear adventure structure, allowing players multiple routes to explore. Controls are user-friendly, supporting touch screen or controller use, with options to hide touch controls. The game also includes secrets and Easter eggs to discover, with a single-player focus that enhances its appeal in two-player co-op mode. Language support is extensive, catering to a global audience.