Points (1) and (2) are true for ad-supported games in general. What Underground provides is a way for games developers to be able to provide a low-barrier ad-su

Points (1) and (2) are true for ad-supported games in general. What Underground provides is a way for games developers to be able to provide a low-barrier ad-supported version of their game while being completely unconcerned with ads. It essentially allows the developer to engage in two different business models (pay-for-install and ad-supported) without that dual-model creeping into the implementation of the game. In that respect, this developer-player inter-mediation is more of a threat to Valve's Steam than it is for Google's Play store.