Hi. You are in general itch forum.
This board is not for issues with individual games or projects. itch.io hosts hundreds of thousands of games, if you need to contact a developer directly consult their game's page.
At the bottom of each game's page you have the area to write to the community of that particular game. It is easier to get help (and even get an answer from the developer) in that area and not here.
Since you are on Itch, I would guess the game in question is in development, or in other words: not finished. You might have reached the end of the available content.
But ask this at the game page. Maybe there are devlogs or changelogs that say how much content there is. Some developers use version numbering. There is no universal agreement how to version, but something with version 0.1 or 0.2 usually is far from finished.
