Just keep your expectations realistic, it's a very crowded space. If you have a fun game that is unique and you spend a lot of time and effort spreading the word you can get a fairly decent sampling. Just keep in mind that it takes a lot of luck too, right place, right time kinda thing. Using Construct 2 site as an example, games get lost quick on Scirra arcade and it doesn't have a way to easily search for games (yeah.. it's 2018)... so you're on the right track pushing it out anywhere you can.
My advice, don't make a side-scrolling space shooter ... no one "gets it", luckily it was a hobby project.