Make game related to village in India so show how villages are and it has no limits just rules are simple submit the game in time and no 18+ content also the game can be 3D or 2D or even 2.5D or  3.5D also 4D and multiplayer games are also allowed with other formats/types of games, whatever in your capability. Good Luck for your upcoming amazing games also if you don't win or not able to submit in time then no problem try next time and yes making game with teams or making it solo is completely your choice. Thanks and meet you in next game jam bye.