I know your idea is awesome. It is the greatest game of all time. I get that. Take the time though to add more. Don’t just make another minecraft with better this or that. Take the time to add more, to innovate. Don’t stop at the greatest game of all time, make it one idea better than that.
Stop for a second and take your best part of the game and brainstorm on how to make it more unique, more exciting, more addictive. Once you do that then you will find you feel even better about your game. Don’t take it off the rails completely, but if you take it just one step further, you might actually have the greatest game of all time.
Often times we take an idea we had and know it is great, when it is simply just something we think is great. Take the time to actually invest in greatness and add, just one more thing.