True submission is not really a game, nor a thing to do just as a playtime. A true pet does not need sex or BDSM games, these are simply fun ‘options’ which often take a role in the lifestyles of both parties as they are forms of expression.
Fetish is not a prerequisite of submission.
True submission or worship lies in serving someone you care for dearly, giving them your complete trust, admiration and respect and only asking in return for their love. No matter what form that love should take.
Just as I am a Dominant, I often do all I can to please my submissives. This may sound surprising, and granted, I punish as well as please (one needs to teach ones pets right from wrong, in my case there is also the ever present sadistic streak), but I am in the firm belief that the command of a true Dominant is held by not just appeasing themselves, but also by appeasing their pets wish to serve.
Remember this: The best of pets are not just your pet, like any animal, they should also be your best friend.