Game Entity Relationship diagram can be created using EdrawMax or EdrawMax Online. The graphic designing tool has tons of symbols and predefined templates that are required to complete the entity-relationship diagram for your gaming industry. Game entity-relationship (ER) diagram has entities like characters with attributes Type, Curr_Mana, Curr_Hit_Points, Max_Mana, Max_Hit_Points, Char_Name, Level, Exp_Points, and others. In addition to this, the game ER diagram will have another important entity like an account, which has attributes like Acct_Name, Password, Last_Signed_On, Subscriber_Name, Subscriber_Address, Subscriber_Phone, Subscriber_Email, Account_Created_On, Creep_Name, and others. Game ER diagram has several symbols like rectangles, which represent the entity types. It has lines that link attributes to entity types and entity types with other relationship types.