Are there any criteria on which game engine to use?
Nope! But hopefully it exports to web so it’s easily accessible to all voters.
Looks like you are using the Yahaha platform which requires a player to be installed?
Could affect "voter" access...
BlocksmithXR allows you to play through the browser
yes unfortunately Yahaha does not export to the web, however I did a Bible quiz, here is the link: https://www.yahaha.com/app/spaces/274903431159
My advice on game engine.... Advice I unfortunately don't hold to ... to keep scope manageable - a smaller game engine provides certain restraints that benefit a game jam. I'm finding once again that I've definitely approached this with too much 'power' and ambition to get there and what I'll end up with will only be a small fraction of what I want it to be! Good Luck! (but honestly I'm working in Unity and its a perfectly fine engine for this Jam... Its more my vision that needs a leash! lol)(