All schools of secondary, public and private education are eligible to participate and all public and private Universities.

Each school /university may normally be represented by one or two groups and every group should consist of two to five students.

Each team must have at least one (maximum two) advisors who are teachers of Computer Science/Engineering or IT-related courses or graphic arts. The University teams are not required to have an advisor.

A team can participate in ONLY one category of games.

Gymnasium students can participate in the Lyceum class (but not the vice versa) provided that they will use the platforms that have been assigned for the LYCEUM category. In such a case the submission will be evaluated with the other entries of category Lyceum and not the Gymnasium class.