The Risk Rating system is a system based on the risk of a game becoming addicting to play which would turn more gamers into Hikikomori. The Risk Rating is as follows;
Risk Rating : S - Greatest risk, too addicting for gamers.
Risk Rating : A - High risk, very addictive.
Risk Rating : B - Moderate risk, kind of addicting.
Risk Raiting : C - Low risk, barely addicting.
Anything lower then this equals zero risk.