More Alliance structures are not automatically better. Each build should serve a route, operation or resource need. Flags extend territory, Camps support redeployment, and Watchtowers and Spike Barricades shape defenses. Treating them as interchangeable ways to occupy space wastes shared resources.
Choose the facility for the job
| Facility | Main use | Placement consideration |
|---|---|---|
| Alliance Stronghold | Core base providing territory and troop and resident functions. | The Alliance’s direction of development and gathering area. |
| Alliance Flag | Extends effective territory for connections and further action. | The route, clipped coverage and continuity. |
| Alliance Camp | Supports rapid allied redeployment and eligible rally assembly. | Distance to the front, reachable routes and capacity. |
| Watchtower | Periodically attacks enemies within range. | Actual range, corridors and supporting garrisons. |
| Spike Barricade | Blocks enemy movement and forces them to deal with it. | Required enemy routes and positions for allied support. |
| Alliance resource field | Produces resources for shared Alliance stocks. | Resource shortages, space and long-term defense. |
A valid preview still needs a Construction Team
An authorized builder selects an eligible tile, chooses the building or Flag command and inspects resources, structure limits, prerequisite technologies and the placement preview. A valid green preview passes the location check; an available Construction Team is still needed.
After confirmation, the system dispatches a Construction Team from an eligible starting point. Teams share the Alliance’s available departure points rather than being permanently tied to one Stronghold. After that selection, they travel on the actual map and encounter pathfinding, Spike Barricades, Watchtowers and enemy troops. The team must reach the location and finish foundation work before the structure enters construction, then returns. Clear and protect the route first: confirming a build does not mean a completed building has appeared there.
An outline does not make every covered tile yours
A Flag has a base coverage area and a smaller or equal area of effective territory. Earlier ownership, system territory and terrain boundaries can invalidate overlapping portions. Invalid tiles cannot continue a territory chain, grant attack eligibility, enable relocation or provide the associated territory benefits. An outline drawn across water or mountains does not bypass those obstacles.
When building toward a city, inspect each section of effective territory instead of only the distance between Flag centers. After a Flag is destroyed, check whether other effective coverage still supports the route. Building farther down a broken chain does not repair the missing link. See the illustrated Flag expansion tutorial for placement.
Distinguish the limits behind a failed build
Total Flag capacity, simultaneous construction queues, placement spacing and available Construction Teams are different restrictions. A free builder cannot bypass the total Flag cap; remaining total capacity does not create an empty build queue. With no available team, the task is not automatically queued for the next return. Inspect team location, Stamina and state in Alliance facilities, then submit a new request when conditions are met.
Facility upgrades also need the corresponding Alliance technology. Watchtower upgrades improve its relevant attacking capabilities, whereas Spike Barricade upgrades primarily improve durability and related properties; one does not substitute for the other. Before removal, check whether a structure still supports a route or defensive line. A Flag’s loss can affect much more than its own footprint, requiring fresh checks of nearby troops, buildings and onward connections.