Fallout – What’s the purpose of the Father in Fallout 3

fallout-3

I don't understand his goals or motives. Why leave the Vault like that?

Best Answer

Just to expand on James' reasons:

He went to Vault 101 both to protect you (player character) and to find a G.E.C.K. The Vault Overseer used him as a physician and uphold the information that there wasn't a G.E.C.K. there. When James found out about this, he waited until you could take care of yourself to leave Vault 101 and look for a G.E.C.K. elsewhere.