Billiard-room

I for one was glad when the meal was over and we were able to retire into the modern billiard-room.

Source: tatoeba (6606757)

Come into the billiard-room and have a quiet cigar.

Source: tatoeba (6981708)

The drawing-room had been modernized, and contrasted ill with an ancient paneled billiard-room, through which one had to pass ere it was entered.

Source: wiktionary

[…] who hate living in camp (though they have a club-house), and miss the billiard-rooms, flirtations with pretty confectioneresses and milliners […]

Source: wiktionary