Social Anxiety Survival Horror. You're a guy at a friend's party trying to avoid conversations while putting in an appearance with your friend so they know you were here. You can deflect conversations with small talk you pick up by eavesdropping, but it won't work on drunk people, so you also need to run and hide. Your ex-partner eventually shows up and is hunting you down to have a frank conversation about your relationship, which is instant game over.
What about Panic Disorder Survival Horror? You have to get through a full week, including 5 work days, 2 social events, and an errand...except you can have a panic attack at any time but also have a heart condition, so you're not sure if you're really having a panic attack or heart attack. If you guess wrong, you lose. Also you have to have a completely empty bladder and colon so you don't soil yourself at work and get fired or in a social setting and lose friends out of embarrassment if you happen to have a panic attack in those settings. Easy mode comes with a script for xanax. Hard mode comes with an abusive stalker ex and their family.
I had a very similar idea but it's about avoiding contact and conversation out on the street and on public transportation. May or may not be influenced by real life experience.
I haven't played it - and the "social anxiety as horror"-slant feels more metaphorical than literal in its marketing - but this makes me think of the game "Homebody" a bit
Good. Someone, please make this. And make it first person for the full effect.
Other ideas for people to pinch:
You can only use each snippet of small talk once before collecting it again, because you're afraid of repeating yourself.
The game is filled with collectibles, but they're all located on the floor, so you're more likely to find them if you're in character and looking at the floor the entire time.
To pause the game, you have to look at your phone while standing in a quiet area.
Your ex-partner has a lengthy list of grievances you can hear when they're hunting you. This includes "you always run away from me at parties".