Thanks for playing and for you feedback!
Unfortunately the only feature lacking was the AI, it was buggy so we decided not to add it in this Jam version. When voting ends we will submit an update fixing that. But playing with friends using gamepads and keyboard is working!
Regarding multiple people submitting: just one person submitted and then we were added as Admins on the game page, then we were marked as contributors, so that's why we show up.