Abstract: Legislations set constraints for free lotteries and other free games of chance. New services which can be charged to players are disclosed as a method, a system, and as the new business model that they create for games of chance and particularly free games of chance.

Abstract: The method consists in a new way of distributing advantages based on a new category of online game.

Abstract: The invention comprises a method for multiple plays for free games. Some games of chance, or of skill, or of mixed skill and chance are only or can only be proposed for free to players. Enabling players to play many more times for free associated with a paid-for service of generation of multiple free plays is the main purpose of the invention. It comprises, namely, an embodiment for a free lottery and an embodiment for a financial forecasting game. It comprises an additional description, for a financial game, of automatic or semi-automatic generation of forecasts.

Abstract: The disclosure includes a method for a financial forecasting game wherein players can take positions on specific very high leverage option-type products. It includes related mathematical modeling methods which can be used to operate these option-type products under the form of a game. It includes, namely, methods to determine probability laws, validate and optimise models, calculate risks, measure individual performance, use steering variables such as tolerance margins and volatility-driven point values. It includes, as a specific application, detailed mathematical formulas to operate the game with three market indexes.