Monster generation

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Version 0.30: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.

While monsters do not normally spawn once you enter a floor, some effects or branches may generate new monsters as you stay in it. Specifically, there is a "monster generation rate" (MGR), and every 5 turns, there is a (5 in MGR) chance of a monster spawning somewhere on the level; a higher value means a slower spawn rate. This monster will normally fit the branch it was spawned in. The MGR's value varies:

  • Pandemonium: MGR starts at 50; after 3k turns, it gradually rises (slows down) until it reaches 300, at 15k turns.
  • Abyss: set to 5, meaning that there will always be a monster spawn every 5 turns.[1]
    • The monster generation code may run twice with a Floor/5 chance up to A:5,[2] three times in A:6, and four times in A:7. Also, spawns in A:6-7 may force-spawn near you.
  • While holding the Orb of Zot: set to 18.[3] Monsters spawn near you, with a special monster set (see Orb of Zot#Monster Spawns).

Otherwise, natural monster spawn is disabled. This does not count summons, doom hounds, or other effects.

For worshippers of Cheibriados, the MGR in the Abyss or while holding the Orb of Zot is doubled (halving the spawn rate).