Google is constantly adding new bits of information to the Knowledge Graph panel found on the right hand site of typical search results. The graph collates a number of data sets to provide more immediate information on everything from landmarks and companies to well known individuals.
Knowledge Graph now shows handy information for console, PC and mobile games, including both Android and iOS titles. You'll find things like the release date, developer/designer and publisher credits, the various platforms it is available on, a quick look at review scores, images and the overall franchise or series the game is a part of.
On top of that, it appears some game results also bring back the "People also search for" bar along the bottom of the Knowledge Graph. You get search query options for other titles in the franchise as well as other games in a similar genre. It appears that not all games are supported, but many of the major releases seem to bring back graph results. The information provided also varies a little bit depending on the title in question.
Reports suggest the feature is available in most of North America and Europe, but there are still some places the game support is yet to appear. However, it is likely just a matter of time before we see a full roll out. It also appears that not all games are supported, but many of the major releases seem to bring back graph results.