From Official Game Page: Empires of Steel is a turn-based wargame. Form alliances, capture and trade resources, research new technologies, and form huge invasion fleets to conquer your opponents. Single or multiplayer, voicechat, customizable maps, scenarios, and rules. Features: - Single player (vs AI) and Multiplayer (Internet, LAN, PBEM) - Trade Resources, Voicechat, Teams, share maps with other players - "We-go" turn system - all players setup their turns at the same time - Map and Scenario Editor - Rules Editor: create your own units, technologies, technology tree, city improvements. Empires of Steel is more than a game; it's a platform for wargames. - Upload/Download System: let's players share their maps, scenarios, and rules with other players.