voxel plugin PRO

This will not grant access to the marketplace version, but to a private gitlab repo with the plugin source. If you are not confortable building the plugin from source, buy it on the marketplace instead:

https://www.unrealengine.com/marketplace/product/voxel-plugin-pro

You will only get a license key from Gumroad. Getting the plugin files requires a manual validation process that can take a few days.

The lower price is due to Gumroad taking a smaller cut.