TFused, yes you can use as you want. All packs is under cc0 licence.
Thanks for the interest and please make awesome things
I want to add all your CC0 art to the asset store in the GDevelop open-source game engine. (Your assets would not be sold for money, and we would list your name on them).
Can you edit your other game packs to clearly state they use the CC0 license? (some of your packs say that redistribution is not allowed).
Thanks for sharing your tremendous talent!