Oh no!! I unfortunately was not the programmer so I don't know the details of how to get it open on your end. We had some problems opening it ourselves during the jam. I'll drop our programmer a message to see if they can offer some advice <3
Thanks so much. Other members of our team are also having trouble opening it. It looks like the file is just an Unreal project file of a base starter kit. If possible, your team should export the build and not a project file. If you can do it by tomorrow (Monday) and we have a chance to play it and approve it, then we could include it as part of tomorrow's announcement. Please let us know!