|Stena Line is one of the world's largest ferry operators and the largest privately owned shipping company in the world. With services serving Denmark, Germany, Ireland, Latvia, the Netherlands, Norway, Poland, Sweden and the United Kingdom.
I wrote to them and recieved a reply...I can confirm that there is a arcade on each of our vessels. These do have gambling machines available to use.
Phone (GB): + 44 (0) 8447 70 70 70
Phone (ROI): + 353 (0) 1 204 77 77
Email (GB) email@example.com
Email (ROI) firstname.lastname@example.org