# u3d > Set of tools to interact with Unity from command-line. > More information: . - Open project from the current directory in correct Unity version: `u3d` - List installed versions of Unity: `u3d list` - List available versions of Unity that can be downloaded: `u3d available` - Download and install latest stable Unity version: `u3d install latest_stable` - Download and install Unity version and editor [p]ackages: `u3d install {{2021.2.0f1}} -p {{Unity,iOS,Android}}`