In 2009, roughly of people age 12 or older who did not drink alcohol were current users of illegal drugs.

In 2009, roughly 4% of people age 12 or older who did NOT drink alcohol were current users of illegal drugs.

the game was released on september 15, 2015 for microsoft windows and os x, and on july 17, 2016 for linux. fox expressed interest in releasing undertale on other platforms, but was initially unable to port it to nintendo platforms without reprogramming the game due to the engine's lack of support for these platforms.