Right now,
As far as we know the game has Riley, I believe a sibling working on it as well, and an artist. Small team but pumping out great work. Although seems like they will add more personnel in the future as per the quote below:
“We’re not currently looking to expand the team right this minute, but keep an eye open as I think sometime in the next two or three months we’ll be looking to add a team member.”
“We actually have an artist who is working on the game now, Elijah Williams. That means that we’re finally getting to start working on some bespoke art that matches the type of style we want to use for the game.”
Hope that helps!