Sound effects: Kenney (kenney.nl) - Interface Sounds, UI Audio, Casino Audio, RPG Audio, Impact Sounds, Digital Audio,
Sci-fi Sounds, Music Jingles. Licence: Creative Commons Zero (CC0 1.0). Trimmed and levelled for this site.
OpenGameArt.org, CC0: OwlishMedia "Sound Effects Pack"; rubberduck "100 CC0 SFX"; IgnasD "Meow"; Kerzoven "Cat Purr & Meow";
pauliuw "Dog sounds"; artisticdude "Swishes Sound Pack".
OpenGameArt.org, with attribution: Vinrax "Pig SFX Pack" (CC-BY 3.0); Gregor Quendel "Free Crowd Cheering Sounds" (CC-BY 4.0).