Games supporting Dolby Atmos or DTS X surround sound.
Games, movies and audio systems support increasingly more complex surround sound systems:
Matrix encoded e.g. Dolby Surround/Pro Logic I & II embed suround sound elements into a stereo track that can be decoded
Discrete encoded e.g. Dolby Digital, DTS etc. have separate audio channels for each speaker in a single digital stream, most frequently in a 5.1 or 7.1 speaker set up.
Object-based encoding that provide positional metadata for audio elements that can be interpreted and best positioned by the individual encoder and its speaker setup