[herewego]

I disagree with most of the comments here stating you should use zero marketing or market to friends, family, or local shops.

Inbound marketing is a powerful tool, doesn’t require you to be a marketing genius, and costs little to no money as an organic content based effort. Write blog posts, publish to Twitter, cross post on game blogs/sites, etc. These things are well proven to work effectively if done consistently. Also, paid ads can work well too, just keep an eye on your spending there.