Looks like you somehow were seduced/lured into expressing interest in those games at one point.
and what do I do?
So I would see if I can find an app called 'appnext' in the Settings > Application Manager and uninstall it. If I couldn't find 'appnext' there I would assume it's one of those pesky hidden apps and I would go look if I can find and install some appblocker that I can program to block specific apps. 'Appnext' in this case, obviously.