itch.io

You are correct, the game is indexed.

If you seek explanations, maybe this explains it.

Some indexing operations may hapen asynchronously, so it may take some time for your project to appear on the search pages as our backend processes the page.

Plus there are a lot of ddos attacks lately, disrupting Itch services. In any case, https://itch.io/search?type=games&q=demirde1 will find your games, if the search catalogue is up to date.

https://itch.io/games/tag-3d/tag-horror/tag-no-ai/tag-psx/tag-psychological-horr... 

Your reasoning with the views and downloads why the game is indexed lead me in the wrong direction ;-)  If you see your game on the browse pages, it's indexed. That's what indexed means. And if you can scroll more to see the game, that's a strong hint.