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Dungeon Meshi (by Asturlavi)
(files.catbox.moe)
A Community for Dungeon Meshi a.k.a. Delicious in Dungeon.
The first season of the anime adaptation can be found on Netflix. Season 2 is confirmed and presumably currently in production.
DO NOT SPOIL THE ANIME WATCHERS
This is so that the anime watchers can sub to the community without worry of seeing posts that would spoil later parts of the story. This includes manga pages and panels, mentioning characters, fanart, etc.
Parent instance rules also apply, of course.
Why do these dungeons always have such nice pavers?
At least in Dungeon Meshi, there is a canonical explanation. The dungeon cleaners (episode 16) would make sure that all the floors/walls are maintained.