We in Fars Royd offer games with a fixed signature, which means you don't need to delete the old version with each update, and you will be able to install the new version on top of the old version! To update the game, you can download the new version from here and then install it on the previous version without deleting the old version. With this, no problem will happen to your progress and you will be able to continue the game after installing the new version. [Both original and mod versions come with a fixed signature, and it is possible to install a new version for both original and modded versions on top of the old version]