Disaster Levels

 are special events that happen every third floor (Slums 1-3, Industrial 1-3, Park 1-3, Downtown 1-3, Uptown 1-3). Most first appear in the Slums, but some are found later in the game. They are intended to change the Player's approach/strategy and provide a challenge.

Modification via Mutators
Through the use of Mutators, it's possible to:


 * Force disasters on all floors (Disasters Every Level)


 * Prevent specific disasters from occurring (Remove Disaster)


 * Disable disasters entirely (No Disasters)

Disaster-Like Mutators
The following Mutators have effects similar to Disasters:


 * Zombies Ate My Game Balance — this is functionally the same as Zombies (Disaster), it's just not flagged as a Disaster in terms of affecting other core game mechanics (such as preventing Teleport or only occurring every 3rd floor).