OpenGameArt.org
A Big Adventure
Credit line
"A Big Adventure" by Alexandr Zhelanov licensed CC-BY 4.0: https://opengameart.org/content/a-big-adventure Author's attribution notice: https://www.youtube.com/channel/UCxmng6_DMIayDwkiWGVzVRQ?view_as=subscriber totalnomus@gmail.com
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.