A Game object defines a wouso pluggable game, such as Qotd, Challenge and Quest.
Returns a list of Game classes
Generic game class. Each installed application acting like a game should extend this class.
Returns a list of game-specific coins (as names)
Returns a list of formulas used by the game
Return a tuple for django template system
Return the unique instance of a Game, starting from its class model.
Return a list of modifiers - as names (this translates to artifact names) Player has_modifier checks if the user has an artifact with the modifier id.