rumpus room vs game room

rumpus room and game room both are nouns.

Word	Noun	Adjective	Verb	Adverb
rumpus room	Yes	No	No	No
game room	Yes	No	No	No

As nouns, rumpus room and game room are synonyms defined as:

rumpus room and game room: a recreation room for noisy activities (parties or children's play etc)

Other synonyms of rumpus room include playroom.

rumpus room (noun)	game room (noun)
a recreation room for noisy activities (parties or children's play etc)	a recreation room for noisy activities (parties or children's play etc)