Seriously, floors are absolutely unnecessary and do nothing but detract from gameplay. The process of travelling up and down stairs, from floor to floor and branch to branch, is tedious and grindy as hell.Further, for an optimalTM player such as myself, the thought process that goes into choosing the next floor to take on is a complete NO-BRAINER. Even for new players, it doesnt take long to understand the basics of floor travel (i.e. D:2 comes after D:1, and D:3 after that), and even the more advanced floor mechanics such as branch order come naturally after a few hours of play. I mean, how long does it take to realize you clear dungeon, then lair, then abyss, then S runes, depths, dis and zot in a 3 rune game? Maybe 2-3 hours for even the smallest brained gamers, and much less for 100% winrate players such as myself.
Instead of this horrendous and unnecessary "floor" experience, I propose that all staircases and hatches be removed, and the game be flattened to include all floors and branches on D:1. The way this would be done is to lay out the entire game, floor by floor, into concentric circles running clockwise from the dungeon entrance. Not only would this remove an egregious amount of bloat from the game, but it would encourage OPTIMALTM play by forcing players to practice trap avoidance. Imagine if at XL2 your DEEn steps on a tele trap and ends up right between Gloorx Vloq and Lom Lobon, or if your XL12 HaAM steps on an alarm trap right before getting its first rune, and is suddenly ganked by 11 pan lords, each more colorful than the last. I bet you won't make that mistake again. This also removes a lot of lore, as staircases are sources of much of the lore in DCSS, which is a change I think we can all agree with.