I have a hard time deciding what to do

I thought about some alternative games that could be made, something I hadn't tried before. Even so, I came to the conclusion that I wanted to try an idle or incremental game again, since they're my favorite genre, but I wasn't entirely convinced because it would be very repetitive and wouldn't help me improve by trying new things. After some thought, I came up with the idea of ​​creating something more visual, like an introduction to the world of slimes, like a bestiary. I wanted to try to improve my own visual style without relying on the AI. My idea is the following: Create a bestiary where you would find a series of slimes, telling their stories, abilities, fun facts, etc. Mechanics-wise, it would be interesting to have well-developed menus, tell a good story, be able to hear the sounds they make, and, if possible, the ability to change languages. Although the latter will be more complicated to implement due to the engine's limitations. I would like to have more than one page of code in which to put the JSON language, to be able to separate the information from the texts and the language, apart from the main code.