Some academics believe that a properly designed, sensitively measured public service campaign has the potential to be very influential. Furthermore, video games have an audience of approximately 73% of 15- to 24-year olds in Great Britain according to a government survey. A campaign against drinking and driving in racing simulators seems a good fit with a large potential audience.
Government PSAs were famously placed in arcade games in the late 80s to mid 90s with the "Winners Don't Use Drugs" campaign established by then-FBI Director William S. Sessions, and the "Recycle It, Don't Trash It!" campaign against pollution.