Big movies and big games have a massive investment in marketing, why do you think big companies with recognizable names and brands still spends what me and you will gain in our whole life just in marketing? Because getting people to notice your stuff is the hardest part.
If you are really serious about your projects then you are thinking about investing your personal money into your projects, and that includes the money that goes into marketing. This basically means paying for twitter/facebook/instagram/reddit/google to advertise your stuff. Pay to have your stuff appear as an add in the same way you are bombarded with thousands of adds everytime you enter the internet (if the big ones needs to do it, imagine for unknow people like you and me?).