While Simon Flesser of Simogo, developer of Device 6, didn't share exact data, he noted that being featured has certainly been positive for the puzzling adventure novel. The studio's tweet from March 27, which falls within the running dates of the Indie Game Showcase, stated that Device 6 cleared 200,000 lifetime sales on the App Store.
Other developers saw general boosts in downloads at the beginning of the promotion - Gauge, Game Atelier's free-to-try game of balancing meters as close to their threshold's edge as possible without going over, earned an average of 600 downloads a day. However, only three users in that daily average paid to unlock the rest of Gauge, resulting in an average of 7.3 euros earned per day.
On a more general level, most developers saw an initial boost in downloads, but those sales spikes decayed quickly and rarely rippled to other efforts created by the studios. Chaotic Box's Frank Condello stated that the Showcase had "zero effect" on Chaotic's non-promoted titles and a "negligible" one on the free version of Critter Panic, its title in the Showcase. Critter Panic's promo status was also paired with a price drop in the month of March, but Condello said he hadn't seen any sales in the few days after the game was set back to $1.99.