This specific version is a "cracked" release. If you enjoy the game, consider supporting the developers by purchasing it through official storefronts like Steam or GOG , which also provides the most stable and updated version of the game.
Battle Fleet: Ground Assault is a turn-based tactical strategy game that brings the "Battle Fleet" naval combat mechanics to land. It features tank-on-tank warfare across various World War II theaters. Battle.Fleet.Ground.Assault.v1.604-SiMPLEX.rar
While this file name is commonly found on community forums and "abandonware" sites, please be cautious: This specific version is a "cracked" release