The Steam standalone version will not require the base game to play the exclusive DLC content, the intro campaign, co-op and multiplayer with the two factions вЂњUsoniaвЂќ and вЂњPolaniaвЂќ.

Iron Harvest: Operation Eagle releases on GOG, Epic, and as a Steam exclusive standalone version. The question is: Will they come as saviors or conquerors? From the frozen landscapes of Alaska to the blazing dunes of Arabia, they now move to take a leading role on the world stage. The American nation of Usonia, seeing the conflict from afar, began strengthening their industry, professionalizing their army and building a powerful air-force. While the Great War raged in Europa, those across the Atlantic did not remain unaffected or idle. Releasing on Steam (available as a standalone), GOG and Epic, the American Union of Usonia faction (Usonia for short) is completing the World of 1920+ with a perfect fit and offers more variety to the Iron Harvest roster. KING Art Games are happy to release the first major Add-on for the critically acclaimed RTS Iron Harvest introducing the new USONIA faction, as well as flying units, new multiplayer maps and a new full-fledged USONIA single player & coop campaign. Is it a bird, is it a ship? Maybe a bit of both вЂ“ Usonia with their giant dieselpunk airships are entering the battlefields of Iron Harvest. New launch trailer & Steam Standalone Version available

Operation eagle iron harvest