I've personally released DEMON DUST on steam and have access to revenue reports for another game I worked on, Vernal Edge. Both of them have performed in entirely different brackets of revenue, but I would not describe either of those brackets as "viral success" or "bad day at a garage sale" 1/2
people need to understand that games on steam largely do not ‘underpeform,’ they either hit the algorithmic tipping points and become viral successes or they do not exist. they sell bad day at a garage sale numbers. this is a reality constructed and encouraged by valve