An RPG, Fallout-style, based on the world of today following a major outbreak of a virus that effectively makes zombies. (Solanum?) You can create your own character, select from a variety of backgrounds and personality traits- which each add subtle bonuses/penalties behind the scenes- and start off as a survivor immune or partially immune to Solanum/the virus in their own home after the virus has devastated your hometown/city, and you have to get out safely and find your way to a myriad amount of safe havens. No place is safe, only safer. Dialogue would be similar to Fallout/Oblivion and you can use any weapons you spend an amount of time training in. Gathering valuable supplies and boarding up whatever Walmart/abandoned place you're in will be an important part of gameplay. Fighting zombies is an important part, but is less important compared to keeping yourself alive, safe, and well-stocked.
The title- maybe 'Outbreak' or 'Aftermath.'