I'm not one of the people who did a video game (mine is an essay and guide to basic game design). What will happen to the other submissions?
I can't speak for whether it'll be removed as that's not at all my choice, but an essay on videogame design seems like an odd fit for a tabletop RPG showcase.
an essay about game design is one of the examples they gave for submissions!
Two important words in my post were "videogame" and "tabletop". Either way, it's not my decision.