Right near the end of this jam, I have one that deals with droids and/or mechs (that’s the surprise theme: spoiler!). It is called Open-source Game Jam 1 (I wish I had a better title). Everybody here who submits could continue work on their game on mine, as long as you release your project files open-source, too. And I also have a prize (currently a secret because I need to verify I can afford the one I’m hoping for!).
So, if you have friends on the fence about joining this jam, tell your friends to join both jams! (I might give out little bitty prizes to everybody who submits…if I can figure out the finances for it! No promises.)