rec room

noun
1
a room in a school, a hospital, an office building, etc. in which people can relax, play games, etc.
اتاق تفریح, اتاق سرگرمی, سالن تفریح, سالن سرگرمی
2
a room in a private house used for games, entertainment, etc.
اتاق تفریح, اتاق بازی, اتاق سرگرمی