I think Steam's exploration queue is a great tool for finding off the beaten path games. While some may only go through it during an event where you get cards o

I think Steam's exploration queue is a great tool for finding off the beaten path games. While some may only go through it during an event where you get cards or something for doing it, I go through a few iterations every week. It keeps track of games you've seen and up or down voted, so you're able to really explore the library without completely mindlessly walking around. I've found some niche, not reviewed often games over the course of a year or two. I haven't explored how you actually get your game listed (so perhaps there is some required marketing by devs) but I'd recommend that effort if you have indeed made a game.