Hi Ian! The reason we listed RPGMaker as an example of an engine that most likely isn't suitable for this jam is because in order to make a functional map for players to explore in, you'd need multiple tiles (something for the floor, the walls, objects in the room, etc.). That would not be in the spirit of the jam, so engines similar to RPGMaker (such as RPG Paper Maker) wouldn't work well.
Panda3D looks like it'll be fine though. Good luck with the jam!