This document discusses how games can express and promote human values. The authors argue that all games embody the beliefs and ideas of their designers and players. They present a framework to help game designers locate how specific values may be conveyed through a game's narrative, characters, rules, aesthetics and other elements. The goal is to provide a guide for creating games in a way that thoughtfully represents cultural ideas and values, and even challenges or changes players' perspectives. Designing games this way could help shape communities and social norms in a "conscientious" manner. They test their framework through workshops that ask teams to quickly design games promoting specific values through their core mechanics.