itch.io

Hello Kilthunox,
Thank you very much for you purchase.
Yes you can use those in a commercial product, please follow those licence instructions:
https://graphicriver.net/licenses/terms/extended

I have also updated the description so it mentions licence usage.

Happy making and don't hesitate to post a link to you project here if you use my assets, I'll repost it ^^

Cheers!