GTA: Dead Zed
You just woke up one day and found out that the world is filled with zombies. You need to find other survivors, weapons and food to live. Together with the other survivors, there is a fighting chance that you can live longer. The idea here is to live loner, so you need to find other survivors and food supplies. Assign them to where they need to be and depend the barricade from the zombies attacking it. The game would be harder as you make some progress, so it would be a good idea to assign some survivors to back you up in the fight against the zombies. Put the other survivors to repair the barricade, while the other should looks for supplies and anything useful.