At its core an RPG is about levelling up, going on quests, and getting into battles. Many people, myself included, would argue that a story on top of all of that is really what makes an RPG. What happens if you take that story element away and only focus on the levelling and fighting?
You get what is pictured above.
Parameters is a game that is all about filling up the boxes, and that’s it. You can level up and modify yourself to make the battles easier, you’ll need to for the boss battles. Once you defeat a boss it’ll drop keys that you can use to unlock other battles and continue.
Like all RPGs there is also a store that you can purchase from to help you if you get stuck.
Go play the game, and you’ll find it confusing at first but slowly you’ll get addicted.