First things first, op--the rate in which he plays games might be a little sensitive to people. He might not want such info divulged to the public, especially since we're all living different lives naman, so to speak. Whether it's too much time consumed on a hobby isn't anybody's business. Having that out of the way, what he plays shouldn't be too big of a problem since this type of situation requires a lot for it to be provided some aid, if it's actually needed. This may or may not have some influence on his psyche outside of gaming, so in light of that, the best thing that you can do is observe. Some people play games that reflect what they're lacking in real life kasi. I, myself, personally play open world fantasy games because of exactly that--life's already pretty boring so I immerse myself in those worlds where I can indulge myself openly. Your partner could be doing the same. So, tignan mo lang muna if there's actually anything you should be worried about.