Look everywhere for ideas or solutions

Sometimes you’re so wound up in your own game, you forget to look at others for possible ideas or solutions. Not every design problem is as unique as you might think, don’t reinvent the wheel when you don’t have to. Look at other games and how they solved it, ask for advise, watch game breakdown on Youtube, read post-mortems or one of the many great articles on Gamasutra.

And also outside games there’s lots of inspiration to be found. Books, movies, theater shows, expositions, they can all leave you with new unique insights.