Flash content is getting blocked in the latest versions of browsers. To enable it in Google Chrome,
first open your browser and type chrome://settings/content/flash in the address bar or go there from
menu "Settings / Privacy and security / Site settings / Flash". On a flash setting page, set toggle
to Ask first (recommended). Now, with Flash enabled, whenever you visit a webpage with Flash content,
you’ll need to click on the Flash player for it to start.
Keno is a popular gambling game in the United States. Its history can be traced to a Chinese game called "The Game of the White Dove" invented during the Han Dynasty (187 BC). The name "keno" descends from a form of Bingo or Lotto popular in the USA in the 19th century. There are many references to "Keno" played in a bingo like format in the eastern states prior to the influx of Chinese during the gold rush. The name appears to have been transferred to the similar format Chinese lottery in the late 1800s.
If you want to play this game offline and without any browsers after December 2020, then download .swf game file and use any Flash Player that runs .swf files.
For Windows users, I recommend ARFlashPlayer (it supports fullscreen option) or official Adobe Flash Player. Both programs are portable.
Another way to play flash games is to install SuperNova SWF Extension (it works in Chrome only).