Includes one or more locations where the player is locked in a room where they either have to fight off a horde of monsters or struggle against time to solve one or more problems to escape before dying.
Alternate name: Quarantined room
The first video game about Traproom was released on February 21, 1986.
The purpose of this is to slow down the player's progress in the game, disallowing them the option of running away, and generally artificially increasing the time required to play the game through.
Boss battles and similar should be ignored as those usually are limited to single location for various reasons (mainly the bit about it being a boss battle).
Literal cases do NOT count. This is for being trapped in a room or some other somewhat small area, not visiting a room with traps (the alt title should make that bit clear).