It is not marked as nsfw. Did you want to tag your horror game that way? Anyway, it is not indexed. Search your username. The game is two days old.
https://itch.io/t/4120453/game-quarantined-search-or-indexing-problem-read-this
Did you see this thread and not recognise it to be relevant for your situation? It is a sticky in the same section you made your thread. I believe the name of the thread is not eye catching. Also it starts with quarantine instead of index.