Since 2016, several international ship casinos have also been operated under the name "MERKUR CASINO MARE". Here, the successful partnership with the cruise company TUI Cruises has resulted in casinos being opened on the passenger ships "Mein Schiff 1" and "Mein Schiff 2". A further casino will also be added on "Mein Schiff 3" in the course of 2021. Intensive negotiations are currently underway regarding the strategic acquisition of further casinos in the TUI fleet. Due to the Corona-related insolvency of the Spanish shipping company Pullmantur Cruises, not five but two MERKUR CASINO MARE are currently being operated.