CoRrectorate is a free open-source Chromium browser extension that enhances the ancient browser game Call of Roma, which was originally developed for Flash but has since been revived as CoR II for HTML (via Egret Engine), hosted by Game Hollywood. It provides quality-of-life improvements to the game to make it more playable for the small community of players who still love it.
Eventually, this project might be published on the Chrome Web Store, assuming it doesn't break some ToS.
Until then, you can install it yourself by cloning this project and then adding the repository folder to your browser using "Load unpacked" in Developer mode.
- Chrome
- Edge
Each CoRrection to the game is provided as a patch, which you can inspect the full source of in patches.
For now, all of the patches are always applied.
Most of the patches have no overhead other than their initial execution when the game loads.
5 and counting!
castle4: Brings back the castle sprite for level 4 cities.cliff: Brings back the cliff sprite for level 9 and 10 deserts.market-orders: Fixes the buy order list in the Market showing sell orders.tax-rate: Fixes the tax rate in the resource bar always displaying 20% instead of the actual value.zodiac-position: Shifts the Zodiac Ceremony button down slightly so it's not floating above the UI.
hide-quest-float: Hides the floating throbbing indicator that annoyingly reminds you that you have unaccepted quest rewards.
CoRrectorate is released under the MIT license. Although there is no indication within the terms of Call of Roma that this kind of extension would be disallowed, we provide no warranties for any consequences arising from its use.
Last updated 2026-03-10.