"In Winter 2004, Empire Deluxe Enhanced Edition, a.k.a. EDEE was produced for Windows by Killer Bee Software. Based on Empire Deluxe's advanced game mode, this game added several new units, such as artillery, satellites, missiles, a helicopter, and mines. User options to increase map size to over 1000x1000, and to design new units and graphics, have made significant creative modification and extension of the game possible."
Source: Wikipedia, "Classic Empire (computer game)", available under the CC-BY-SA License.