To build a strong economy, focus on developing resources efficiently. Construct resource buildings like factories, mines, and farms. Ensure that your infrastructure is well-maintained to facilitate the flow of goods and services. Additionally, trade with other nations when possible to gain additional resources.

Spies are crucial for gathering intelligence. They can provide valuable information about enemy movements, economy, and military strength. Use this intel to plan your attacks and defenses more effectively. Spies also help in sabotage missions against enemy infrastructure.

Yes, you can customize your units to some extent. Upgrade your soldiers, tanks, and aircraft with better equipment and technologies. This will enhance their combat capabilities and make them more effective in battles.

Diplomacy allows you to form alliances, negotiate peace treaties, or declare war. It's important to manage relationships with other nations carefully as they can affect your overall strategy. Alliances can provide mutual support, while treaties can prevent unnecessary conflicts.

Winning requires a balanced approach. Focus on both military and economic growth. Strengthen your defenses and offense equally. Gather intelligence to anticipate enemy moves and counter them effectively. Always be prepared for unexpected challenges and adapt your strategy accordingly.

Yes, there is a tutorial available to guide new players through the basics of gameplay. The tutorial covers essential aspects such as building an army, managing resources, and conducting military operations. It's highly recommended for beginners to get familiar with the game mechanics.

Upgrading military technology regularly is crucial for staying competitive. Aim to upgrade at least once every few days to keep up with advancing enemy tech. Prioritize upgrades that improve unit effectiveness and defense capabilities.

The demo version may not include full multiplayer functionality, but it likely offers a taste of multiplayer features. For complete multiplayer experience, consider upgrading to the full version of the game where you can compete against other players globally.