I have been thinking about this situation for a few days now and would like to know what the process is, if there is any difficulty in this or whether I am just overthinking... I would like to setup my SQL database so that when a user registers on the forum, they are also automatically registered with my gaming networks game server. Is this simply a matter of pointing the forum table and game server acccount table to the same database? or is there additional steps that would need to be taken? I feel as though I may just be confusing myself with a simple answer.
You can do that. Two sites can share the same database / table and user can login into both sites using the same user/name password. As long as the game site and the forum site that you have uses same table name / columns, you should be fine