I think the profile levels are made in the format of a progress element, or some kind of "competition". How many levels have you completed and all that. However, apparently, this is all the content at the moment. Apparently, they planned to make more, but the developers began to focus on other projects. I don’t know if they will return to their old games in the future.
For example, I personally would like to see a continuation of Fariwalk and Rugida. They are even on Steam. But in my humble opinion, there is little hope.
However, I can understand the developers. I have something similar with the translations of games, which I have not finished for two years and am distracted by other projects :(