unity.com
In short: Getting listed on Unity Asset Store is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Build a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Build a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Publisher verification, technical validation, legal rights and marketplace review apply; do not repackage generic or unlicensed assets.
Open the submission page on unity.com and complete its form — that is the "Open submit page" link at the top of this page.
Publisher verification, technical validation, legal rights and marketplace review apply; do not repackage generic or unlicensed assets.
Priority sets the band — this one is high. Cost (free) and effort (moderate) move it within that band, which puts it in the high impact tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.