This is a very different world than what we live in today. Keep that in mind when creating your character. Try to picture yourself in a similar situation. It might help you figure out a little bit of how you want to make them. The people of this Earth are survivors. Some can depend on each other. Others depend on no one. Be mindful of your choice for your character. Ask yourself things like... Are they part of a family or a community? Are they alone? How long have they been alone? Were they born before or after the 53 days of falling rock and fire? If they were born before, how did they cope with everything? There are a lot of questions you can ask yourself. Try to put yourself in their place, and think...What would I do? This can really help a lot with creating believable characters for a game like After The Fall. If you're not sure about something, ask someone.