To upgrade your buildings, navigate to your city view. Select the building you want to upgrade, then tap on the upgrade button. You will need the necessary resources, such as gold and materials, to complete the upgrade.

To defeat stronger enemies, focus on upgrading your troops and utilizing different unit types. Combine ranged and melee units for balanced attacks, and use formations effectively to exploit enemy weaknesses.

To recruit new units, visit the barracks in your city. Choose the type of unit you wish to recruit, ensure you have enough resources, and select the number of units to recruit. Once you confirm, they will be added to your army.

Maximizing resource collection involves upgrading your resource buildings and ensuring they are always working. Also, engage in battles to pillage resources from enemies and complete quests for additional rewards.

To manage troop formations effectively, first organize your units before battle. Create a formation by selecting units and positioning them strategically on the battlefield. During combat, adjust formations based on the enemy's troop type and placement to gain an advantage. Steps include: 1. Select your army. 2. Choose the formation style. 3. Position units accordingly. 4. Start the battle and adapt as needed.