Sea Level Mod Welcome to the Sea Level Mod Readme! by swat-medic. Description: This mod is designed to change the sea level in SimCity 4 to a lower, or higher altitude in order to get sea at a higher or lower altitude, or get no sea at all. Installation: To install, select the level of sea that you want and remove all others. Crash will occure if more than one mod file is in the folder at a time. Completely remove all other sea level mod .dat files from your plugin folder. Uninstallation: To uninstall this mod, simply remove the entire folder from your plugins folder. Compatibility: This mod should work with all terrain mods. Please report any and all complications!