To play Social Empires you'll need either a flash-capable browser, or the Adobe Flash Player and a browser with Flash support:
🔍 Flash-capable Browsers
Note: Flash-capable browsers like Flash.pm integrate a Flash Player and therefore do not require an Adobe Flash Player installation.
🔦 Adobe Flash Player
Download Flash Player for Firefox and Basilisk – NPAPI
Download Flash Player for Opera and Chromium based applications – PPAPI
Note: All downloads are for Flash Player 32.0.0.371, the last version without End-of-Life kill switch, from the Adobe Inc. Flash Player Archive.
🔍 Browsers with Flash support
Chromium 82.0, the open-source projects behind the Google Chrome browser.
Firefox 84.0 64-bit or 32-bit (14 Dec 2020), the final version to support Flash.
Important: By default, Firefox is set for automatic updates. To prevent Firefox from automatically updating itself after you install an older version, you'll need to change your Firefox update settings: Click the menu button (三) and select Options. In the General panel, go to the Firefox Updates section.
Important: By default, Flash is disabled in Chromium. You need to enable Flash in Chromium settings.
Basilisk Browser, which fully supports all NPAPI plugins (i.e. Flash). It's a fork of the Mozilla/Firefox code.