Do you have any game sub-genres that you have a name for, but aren't big enough to be "official" sub-genres?

I realized that some games I play fall into specific categories that could be their own sub-genre, but are either too specific, haven't been around long enough, or there's a "good enough" combination of genres that could be used to describe them that makes it impossible to find more in that genre.

I'm interested if anyone else has any of these weird little sub-genres that they enjoy and wanted to share.

Feel free to add any games that you think fit into sub-genres other people describe