Foo’s Client is an independent custom client for Mindustry, the hybrid tower-defense and factory-building game. Supporting Mindustry versions 5, 6, 7, and 8, it adds a broad collection of tools and quality-of-life improvements designed to make gameplay more convenient while maintaining good performance. Its features serve both general players and multiplayer communities, with selected options tailored to particular servers and custom game modes.

The client includes anti-grief tools such as tile interaction logs, which record block activity and let players inspect a tile’s history. Administrators can access additional server-provided information through a chat command. Other features include expanded zoom, improved free-camera controls, larger schematics, automatic client and mod updates, customizable hotkeys, and interface enhancements. Players can preview turret, overdrive, and reactor ranges, use navigation to move autonomously around the map, and take certain actions through clickable chat prompts. A custom networking protocol also supports chat verification and optional encryption.

Foo’s Client is available for Windows, macOS, and Linux, with a listed minimum storage requirement of 200 MB.