strategy game, Hearts of Iron IV, Red Flood mod, alternate history, 1936 scenario, vibrant colors, steampunk elements, Art Deco architecture, military uniforms, tanks, airplanes, soldiers marching, dynamic weather, political intrigue, map view, grand strategy, resource management, complex diplomacy, real-time tactics, global conflict, immersive soundtrack, detailed terrain, faction leaders, propaganda posters, in-game events, multiplayer, historical accuracy, soft light, isometric perspective, user interface, HUD elements, strategic zoom.