sˌʌm ɡˈeɪmz ɐlˈaʊ ðə plˈeɪɚz tə mˌeɪk ðɛɹ ˈoʊn ɹˈændəm mˈæp skɹˈɪpts ˌɑːɹɹˌɛmˈɛs, ɐ fˈɔːɹm ʌv ɡˈeɪm mˌɑːdɪfɪkˈeɪʃən.
Some games allow the players to make their own random map scripts (RMS), a form of game modification.