Hi, about your question, to be honest, the last 50% was completed during the event. Before that, I only had a game idea similar to "Outlast" and didn't know about jam. I mostly used Synty's model packs for scene building and lighting layout. The final demo was completed within jam.
Thanks for the answer. In the future, if you participate in a jam, it's better to write on the game page (and/or in the game itself) a list of third-party assets used and the fact that you used your own. Otherwise, people will treat your game with great suspicion.
This submission has been disqualified for unknown reasons. As an ordinary Chinese developer, being disqualified on my first Jam attempt is very disheartening. Nevertheless, I still appreciate everyone's votes and comments.