The best way to get Spine 3.8.99 for free is by downloading the directly from the official Esoteric Software website.
Here is a complete guide to what version 3.8.99 is, how the licensing works, and how to safely access free components of the software. What is Spine 3899? spine 3899 free
The phrase "Spine 3.8.99" refers to a specific legacy version of The best way to get Spine 3