This report presents the results from the thirteenth year of the Ecstasy and Related Drugs Reporting System (EDRS), a study monitoring ecstasy and related drug (ERD) use and market trends in Melbourne, Victoria. It includes key findings from interviews with 100 regular psychostimulant users (RPU), key expert (KE) interviews and external indicator data. The 2015 EDRS Project was supported by funding from the Australian Government under the Substance Misuse Prevention and Service Improvement Grants Fund.