This category of games is rather filled to the brim if you know where to look. Many of these games are just like Yume Nikki, where an easy and simple platform of content generation is the main drive behind it. Yume Nikki was made with RPGMaker. It didn’t even use most of the functions that RPGMaker is for. Yume Nikki is mostly ignoring the functionality of the software it was made on, bearing no resemblance to an RPG. But the more interesting aspect of these types of games is that they are made by a very small group, if not a single person. One example today is Eskil Steenburg, the creator and sole person working on Love. Doesn’t need massive amounts of people behind it; talking to gamers about this concept would be preaching to the choir. All modern day gamers that grew up on the 8-bit era would like to think that a game only needs to be fun.
The way I use experimental might be a misnomer. But I’ll be damned if the games I mention here didn’t correctly execute some strange aspect or function that is either still not working in other games, or no one really hasn’t done it in the same scope. Here’s an old one for you all.
Wait for it.