Chrome 69 allows you to enable Flash the usual way in the site settings, but it will revert those settings back to "Ask" or "Don't allow" when you restart your browser. This is not a bug, it's a feature, a part of the deprecation process through which all the major browsers (except lynx ) are trying to force users and companies like Plarium to abandon Flash before its end of life in 2020.

However, for us, it is annoying. So, to enable it permanently:

1. Open a new tab.
2. Type the address: chrome://flags
3. Look for "Enable Ephemeral Flash Permissions" (feel free to use Ctrl+F) and set it to "Disable".
4. Do not touch anything else; some of these options are potentially dangerous.
5. Restart your browser.

After this, Chrome should remember that you allowed Flash to run.

Be careful with your future browser upgrades:

• Chrome 76 will make Flash disabled by default (I don't know if the above trick will still work; I suspect not).
• Chrome 87 will completely remove Flash support.

Plarium is claiming that we'll get a non-Flash version of the game by then, but just in case that this doesn't happen on time, check this post before upgrading.