slr didnt see this earlier :)
well generally game jams here on itch are video game centric unless specified otherwise (art jam, music jam, tabletop jam, etc)...
while none video game entries are allowed... how u implement the limitation is still up to u and the community, even if the implementation isnt 100% standard.
for a table top game u can still implement the "start with a cutscene" by making and providing a short video? a comic strip art? ... anything really that can provide visual story telling before playing the game🤔