All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
We have not come across any statement of any scholar who is of the view that musical instruments are forbidden saying that it is permissible to play these games while not muting the music (sound of the musical instruments).
As for the children, their guardians are required not to enable them to play games that have sounds of musical instruments. Although children have not yet reached the age of puberty [when they are Islamically accountable for their deeds], yet they should be prevented from committing evil as a way of disciplining them, as stated by As-Safareeni.
Allah knows best.