First Game Jam! Yihaaa! Overexcited!? You bet!
First (real) game jam for me. Very, very excited!
....
Did I mention that I'm VERY excited?
First (real) game jam for me. Very, very excited!
....
Did I mention that I'm VERY excited?

My Jam entry (first real game jam ever!) is called Stay Afloat. I just published it: https://ldjam.com/events/ludum-dare/50/stay-afloat
You are a robot of last years model. Your manufacturer wants to sell new robots, so they send out updates that drain your battery. Your only chance is to get to the last point on Earth with no Internet connection - the tropical island of Nowifi. Unfortunately your plane crashed just before getting there. Jump between floating (but sinking) debris, and manage your power usage so you don’t run out of battery.
The game can be played on Unity Play: https://play.unity.com/mg/other/stayaloatfinal

...of getting my first actually good game idea for the theme, but only now, after having completed the Jam. Well, I guess that was also inevitable...
Are there any statistics on what game engines are used? Having played a number of games now, there seems to be A LOT of Unity games (I used that as well).