​x99 is an experimental artist who has gone under many aliases. The most well known and iconic alias is “Fijix99.” This was his name when he used to make trap metal and screamo music. Soon, he would have another alias known as “QQUICKSCOPE” where he got into making necrotrap. x99 is a former member of the gutter crawlers collective. x99 collaborated with many members of the gutter crawlers, but you will see him mostly collaborating with ZEMAR.