just found out this morning and already reported that:
http://www.google.com/support/forum/p/Chrome/thread?tid=5139b6ff0f51d781&hl=en
You found these games where???
I gave the links in my report linked above, so if needed, these games are there:
https://chrome.google.com/webstore/detail/aciahcmjmecflokailenpkdchphgkefd
https://chrome.google.com/webstore/detail/mcbkbpnkkkipelfledbfocopglifcfmi
Sorry Logos, Where on your system.
I’m running the same build.
I already uninstalled them of course, but if the question is where do you see what apps are installed, then just click on the new tab button, and you’ll see appearing now on top of the “most visited” thumbnails, a new section called “Apps” with a button linking to Google Webstore. Installed apps will appear there as well as buttons.
Maybe avast! free should be offered here as on of the Application ???
okay I was right, the thread on Chrome forums has been updated by people who saw the same thing happen. Sounds to have happened to people who either upgraded from the beta to the dev channel, or others like me who had to do a manual upgrade from dev 9 to dev 10, as at the time I did it Chrome was refusing to auto-update. Google just bundled the two games with the install package, and this is not acceptable.
As Logos and I have already discussed in Skype, these are links to
applications they aren’t installed unless you select to install them. 
Not acceptable bu not quite as bad as installing something with out your knowledge.
the confusion also came from the fact that these suggested apps, so just links in fact, offered a contextual menu similar to actually installed apps, instead of showing a dismiss option for instance. So as I “uninstalled” them immediately, I had no idea that they were links. A line of text apparently is saying it when you got no app at all installed yet http://www.dropmocks.com/mOUh7
This said Firefox has also been suggesting extensions for ages, but in a completely separate section of the add-on manager.