In 2004, the CCE classified 119 computer games itself. 564 games were classified through the Pan European Game Information (PEGI) system.

Classification of video games began with a new law in 2000, which aimed to protect minors and tackle piracy.  The criteria are controversial and highly subjective.

The CCE classifies according to criteria for five age groups. These are set at 4, 6, 12, 16 and 18 years old.  For example, strong sexual content or physical or psychological violence are deemed to be inappropriate for children under 16 years old. 

Overtly pornographic content or pathological physical and psychological violence carry an age classification of 18 years old. In the case of pornography, artistic and aesthetic values are also taken into consideration.

Classifying computer games can be a long and complex process.  While it may take only hours to reach a decision about a film, computer games can take a whole month to classify.

PEGI is a voluntary self-regulatory system, and acts to provide advice for consumers. PEGI also classifies according to five age groups.  For example, an age rating of six years old is applied where a game depicts occasional violence against unreal or cartoon characters. The highest age rating of 18 is reserved for bloody and realistic violence against humans and animals.  It also applies in the case of sexual content, discrimination, or glamorisation of drug use.

Moves to unify the criteria used for classification across the EU face significant obstacles due to the legal and cultural differences between member states.  The European Council and European Parliament have nevertheless been discussing the issue and the aim is for industry to protect minors through self-regulation.