Stealth is a highly versatile client specifically designed for Ultima Online, aiming to provide gamers with a tool that can emulate nearly any player action while maintaining minimal resource usage. The primary goal of Stealth's development was to operate independently of the original UO client, offering unparalleled performance and flexibility for players. It supports multiple scripting languages, including Pascal, Python, and C#, allowing users to create complex macros effortlessly.

Stealth boasts features such as direct, low-level access to character data and client-server communication, ensuring fast and efficient macro execution. Its intuitive interface includes a built-in script editor with syntax highlighting and a debugger for troubleshooting. Additionally, Stealth provides advanced pathfinding capabilities, a comprehensive game map, and fast item caching to enhance gameplay. Players can even run multiple instances of the client seamlessly and connect through various proxy options. With a robust API featuring over 450 methods, Stealth is an essential tool for any dedicated Ultima Online player looking to enhance their gaming experience.