What's the noun for lotteries? Here's the word you're looking for.
lottery
A scheme for the distribution of prizes by lot or chance, especially a gaming scheme in which one or more tickets bearing particular numbers draw prizes, the other tickets are blanks.
(figuratively) An affair of chance.
(obsolete, Shakespeare)Allotment; a thing allotted.
“The evening news was interrupted by the weekly lottery drawing.”
“After quitting his job, he decided to invest his savings into a risky lottery by starting his own business, despite having little knowledge about entrepreneurship.”
“Yet somehow the worthies who distribute our lottery money could not see that.”