What (Windows, macOS, Linux) are you targeting? Do you need to run multiple specific versions side-by-side? Will you be using a free Personal license or a paid tier?
Unity’s licensing system is tied to the machine hardware (MAC address), not the software installation.
Unity still creates local registry entries and configuration files on the host computer's C: drive upon first run. You will also need to re-verify your Unity License when moving to a new machine. 2. Portable Game Builds (For Players) unity portable install
For the ultimate portable Unity development environment, combine all the techniques above:
Work on your game at home, school, or a cafe on different machines. What (Windows, macOS, Linux) are you targeting
Plug your external drive into any compatible computer and resume development instantly.
This guide will walk you through creating, managing, and troubleshooting a truly portable Unity installation on Windows. Unity’s licensing system is tied to the machine
Click the dropdown for your operating system (Windows or macOS). Select Unity Editor (64-bit) or Unity Editor zip .
: Use NTFS for Windows-only compatibility, or exFAT if you plan to switch between Windows and macOS. Step-by-Step Installation Guide