"*Put together a nicely composed e-mail along with press kit containing screenshots, video and link to game.
*Send to magazines, local newspaper, gaming sites, reviwers, editors, youtubers, twitchers etc.
*Be active on social media, engage people.
*Hand out flyers with promo code outside your local supermarket if you have to."
These things cost nothing to do, except sending it to a newspaper, but you can skip that. I would guess game development is not a path you should consider if you have such a "what does it matter" attitude.