I can't help you make a good plot or a good name, but the name should be related to the plot and game. If you're passionate enough about it, and keep trying, you'll eventually settle on something. Once you settle on it, try to find ways to improve it. Sometimes inspiration just takes time. You can speed inspiration up, I think, If you're actively looking for it. Other times it will just be a random moment when it hits you. Sometimes it will be right in-front of your face. Sometimes it will literally pop out of no-where and it may be difficult to trace where you think yourself got the idea from. Look at things that inspire you and try to find out why they inspire you.