If you are currently enrolled in an accredited educational institution, you can access the Unity Student plan for free. This plan includes free access to advanced learning workflows and premium assets to help build your portfolio legally. Alternative Open-Source Engines
If you need lawful options, I can help with:
If your studio is less than 5 years old and has raised less than $5M, you qualify for 12 months of free Unity Pro (with dark mode and no splash screen).