At some point, most developers will start wondering how to boost the sales of their indie game. Over the internet, at conventions, through emails, and even while sharing a beer; regardless of how long you’ve been in the industry, this question likely already came up. Finding a proper and thorough answer, though, is not always …
I give a shout out to Migami's Castlevania Lacarde Chronicles 2 on PC which is the best indie of 2017
Put it on IGC or GWG to garner more attention
Take a good hard look as to why it's not selling and then learn from your mistakes.
easy: dont hop on a trend, create a thought out game that stands on its own and not on only marketing.. and your indie game will sell like hotcake.