I win nothing.
What happened is that during some run I got plenty of healing consumables and got quickly to level 3 so after I got stuck there I started mapping it, then mapped the 4th and 5th floors as well and fortunately didn't die before the end.
I wonder if there's more in the game than what's communicated, if there is more then you might indicate it in the game page. Just like the previous poster I've no idea if picking any weapon is worth it and the difference in the time it takes to defeat some enemy or another is disturbing. I also have little idea of when I'm close to death.
One thing I didn't like about the layout is that each corridors ends in a dead end, there is no intersection leading to two roads which could join again further.
Overall I had fun though, the game is very nice to look at and feels good to control, the sounds add to the atmosphere and tension and the combat system + an healing consumable you might use too early or too late is perfectly fine and fun gameplay in the context.
Thanks for sharing!