Brogue Wiki
Scalding steam

steam rising from a gently warmed pond

Steam is created when lava cools in a key trap, when a flame source (such as a Potion of Incineration) interacts with deep murky water or by a Steam Vent. Potions of fire immunity do not protect you from being hurt by steam.

Steam acts like non-flammable caustic gas: any monster or adventurer caught in scalding steam will lose 1/15th of its health every turn, or at least 1hp if it doesn't even have 15.

Caustic gas · Paralytic Gas · Confusion gas · Explosive gas

Scalding steam · Bloodwort spores · Putrescence · Putrid smoke