Answer: Courier station.
Some extra relevant information:
In the popular mobile game Rise of Kingdoms, players have the task of building and expanding their own virtual civilization. With a variety of buildings to construct, each serving a unique purpose, it is crucial to understand which ones can and cannot be upgraded.
While most buildings can be upgraded to enhance their capabilities and unlock additional features, there is one particular building that stands out as an exception. The building that cannot be upgraded in Rise of Kingdoms is the Alliance Center.
The Alliance Center is a vital structure that serves as the headquarters for the player’s alliance. It plays a pivotal role in facilitating alliance activities, fostering communication, and coordinating strategic efforts amongst alliance members. The Alliance Center cannot be upgraded beyond its initial level of 25.
However, it is essential to note that even though the Alliance Center itself cannot be upgraded, several functions within it can be improved. For example, the Alliance Technology research tree allows alliances to collectively invest in technological advancements that provide various benefits to their members.
While some players might find the inability to upgrade the Alliance Center a limitation, it actually promotes alliance cooperation and ensures a level playing field for all alliances. It encourages players to focus on other buildings and strategies to gain a competitive edge.
In summary, in Rise of Kingdoms, the Alliance Center is the only building that cannot be upgraded. While this might be considered a limitation by some, it fosters equal opportunities for alliances to strategize and collaborate effectively. So, be sure to make the most of other buildings and features to maximize your kingdom’s progress and dominance.