Goodgame Empire is a medieval strategy browser game. Build you own castle, create a powerful army and fight epic PvP battles. Start playing now!. Play all your favorite free online slots and casino games at Empire City Online Casino. Featuring Roulette, Blackjack, Baccarat, Video Poker, Slots and much. How to play Goodgame Empire. Prepare for a colossal crusade to conquer the map. Follow the in-game instructions to perfect your battle strategy and increase.