You can reveal the topic in any way you like, for example plot-wise or graphically. You can generally make a game that has nothing to do with the jam, then it will simply be poorly rated in the “Theme” category. I would also like to remind you that the topic “Geometry” is general, a more specific topic will be covered later, this is done so that the participants have at least some idea of what they are participating in, but could not make a game before the jam.
