 The distinction between thick and thin logical models seems folklore in applied logic. In fact, it occurred already in the earlier-mentioned choice between local logics with single step modalities versus temporal logics built over a complete universe of histories. Yet, there does not seem to be a unique best perspective. Rather, the choice between thick and thin models often depends on the exact goals pursued. A central consideration in this trade off is where the dynamics of stepwise play should be located: Thick models pre-encoded such dynamics, whereas thin models allow for an external dynamic logics for updates (Baltag, Smets, and Zvesper 2009). The next section will highlight a number of ways for complementing a thin perspective with dynamic information on game play through representations of actions and updates.