homebrew system pre-alphas
The system I'm playing with is tentatively called Omnipotence. It consists of Actions, which are what a character does, and Effects, which are what the character seeks to achieve by doing it. The character automatically succeed in taking any Action attempted, which is why the game is called Omnipotence; but it takes a die roll to see whether the desired Effect is achieved. It's all very raw right now, but the key would be strictly defining "Action" and "Effect" so they don't include any elements from each other, and prohibiting any clauses, conditionals, ambiguities, or complexities in a statement of Action and Effect. It would also be highly advisable to bar any sly, deceitful, manipulative, or lawyerly players from this kind of wide-open game. The kind of player who relies on loopholes would be very taxing to the GM in Omnipotence as I envision it and would not be welcome.