The tagged license is assets-cc4-by and not assets-cc4-by-nd like in the description. The link after the cc by-nd badge also goes to cc by.
From the can't list by-nd explicitly allows reselling and redistribution of the unchanged assets as long as it's properly credited. And that probably also includes making them part of game-making tools or code templates, but I'm not 100% sure.
And if I understand this text correctly, you are not allowed to use the creative commons "trademarks, names, and logos" if you modify the license: https://creativecommons.org/faq/#can-i-enter-into-separate-or-supplemental-agree... https://wiki.creativecommons.org/wiki/Modifying_the_CC_licenses
cc by is pretty much a "you can edit and redistribute" and cc by-nd a "you can redistribute unchanged", without the redistribution part it's somewhat pointless to use creative commons licenses in the first place.