How is an alternate zone triggered?

[hnz_kkk]

I don't understand under which rules the game decides to put me into original or alternate zone layout, which offers different bosses and in some cases different surroundings. Is there a rule? As it seems completely random to me and there is no clue anywhere in the wiki and/or forums. I'm playing the latest 1.1.5 version with no addons that I know of.

[Faeryan]

Afaik, it's totally random.

[Crim, The Red Thunder]

Not quite true. It's random EXCEPT for the first time. You must have completed a zone's normal version at least once before the alt shows up, IIRC.

[Mewtarthio]

The relevant code is:

Code: Select all

if not world:hasSeenZone(short_name) and not config.settings.cheat and not world:hasAchievement("VAMPIRE_CRUSHER") then print("Alternate layout for "..short_name.." refused: never visited") return "DEFAULT" end

Which, if I parse it right, means you qualify for alternate zones if you've visited the zone before (as any character) or you're in developer mode or you've killed the Master (as any character on a non-Easier difficulty setting).