The phrase "ran game on" means to deceive, cheat or trick someone. To find an antonym for this, we need to look for words that are opposite in meaning. Some antonyms for this phrase could be honesty, fairness, and sincerity. Other words that could be used are genuine, forthrightness, and honor. These words suggest that there is no deception, deceit, or dishonesty in the actions of the person referred to. So, if you want to convey the opposite of "ran game on," you can use words that reflect honor, truthfulness, and honesty in your language.