How many levels are on Fate Undiscovered Realms

The original Fate was advertised as having an unlimited number of levels. However, after quite a bit of exploring by some dutiful players, it was discovered that after a certain number (somewhere around 200 billion,1 I believe.) of levels the games code runs into problems and the levels don't' generate correctly and eventually trying to load one crashes the game, essentially creating a bottom to the dungeon. I believe the same story is true for UR. Weather it actually is bottomless or not, odds are that if you're playing the game without skipping thousands of levels you'll never find the end.

1edit: I found the exact number; 2,147,483,647