Sounds like a nice Game Jam from our friends OpenGameArt.org.
This Summer marks the end of an era folks! ChasersGaming recently announced his retirement from hosting the Summer Jam. I'm sure I speak for us all when I say a big thanks to ChaserGaming for being a most excellent host over the years! You have paved the way for newbies like myself to step up and host by fabricating a solid set of rules and tips.
Game Jam itch.io page here.