In order to be successfully integrated in our society, artificial moral agents need to know not only how to act in a moral scenario, but also how to identify the scenario first as being morally-relevant. This work looks at certain complex video games as simulations of artificial societies and studies the way in which morally-qualifiable actions are identified and assessed in them. Then, this analysis is used to distill a general formal model for moral actions aimed to be used as a first step towards identifying morally-qualifiable actions in the field of artificial morality. After discussing which elements are represented in this model, and how they are enhanced with respect to those already existing in the analyzed games, this work points out to some caveats that those games fail to address, and which would need to be tackled properly by artificial moral systems.