What it is
Builder Alliance is not a weaker version of normal Season 1 competition.
It is a different season path that exchanges City/Influence competition for construction/support facilities, Builder progression and Builder-specific rewards.
“Weak alliances should become Builders.”
The correct question is:
Will this alliance create more value competing for territory, or supporting the warzone through Builder systems?
Timing
Check the current conversion schedule and permissions in the Builder Alliance menu:
- Builder Alliance opens in Week 4.
- Conversion can occur during Weeks 4–7.
- The decision is irreversible for the remainder of the season.
- R5 or authorized R4 management can perform the switch.
Conversion eligibility checklist
At the time of conversion:
- Check the required number of eligible members and their Power thresholds;
- Check the current Alliance Influence requirement;
- Confirm what happens to captured Cities when converting;
- Check the captured Stronghold limits for each warzone.
Use the live Builder conversion screen as final authority because these requirements can be rebalanced.
What the alliance gives up
Before converting, consider which activities the alliance may lose access to:
- no continued City Race / Alliance Influence ranking path;
- Builder Alliance cannot continue normal City declaration competition;
- Builder ranking/goals replace the non-Builder Alliance Influence settlement path.
Before settlement, verify how Builder Alliance resources and rewards are handled:
- Builder goal/ranking rewards are mutually exclusive with non-Builder Alliance Influence settlement rewards;
- Warzone Influence settlement rewards remain available.
Builder Alliance also has operating rules that matter after conversion.
Resource-facility storage
Storage limits — check the active Builder facility
- Builder Food / Iron / Coin production facilities store only 24 hours of production.
Practical advice
Collect at least daily. A Builder Alliance that ignores collection can waste the very economic value it converted to obtain.
Donation eligibility
Donation eligibility — check current membership rules
- a member must be in the Alliance for at least 24 hours before donating Building Materials.
Practical advice
Do not recruit a new member five minutes before a major Builder push and assume they can immediately contribute materials.
Builder EXP conversion
Builder EXP exchanges — check the current rate
- 10 Building Materials → 100 Builder Alliance EXP.
This is the direct progression relationship leadership should understand when setting donation goals.
Unused materials after season
Unspent materials — check settlement conversion rules
- unused Building Materials convert to Profession EXP at 1:100 after the season.
This is useful for cleanup guidance but should not encourage intentional hoarding if Builder upgrades remain valuable.
Failed donation
Failed donations — check the refund rules
- a failed donation returns the Building Materials.
Abandoning a Support Facility
Abandoning facilities — check removal effects
- abandoning a Support Facility destroys the facility/effect;
- spent materials are not refunded.
Do not abandon a Builder facility casually. The materials already spent are lost.
Review the effects listed for each available Builder facility:
| Facility |
Core effect |
| Iron Factory |
Iron/Metal output + City/Base durability effect |
| Food Plant |
Food output + durability effect |
| Coin Factory |
Coin output + durability effect |
| Collection Depot |
Gathering Speed +10% |
| Engineering Hub |
Construction Speed +10% |
| Research Lab |
Research Speed +10% |
| Training Center |
Training Speed +5% |
| Medical Facility |
PvP unit death-rate reduction 5% in same warzone |
| Radar Station |
Hero Defense +5% in same warzone |
| Armory |
Hero Attack +5% in same warzone |
Facility durability bonuses depend on the current facility description. Confirm each effect before spending materials.
Check the construction menu for facility limits and placement rules:
- up to 10 facility types;
- up to 3 facilities around a City area;
- facilities may be used to support allied Cities rather than only Cities the Builder Alliance previously owned.
Use the live Builder UI as final authority for placement-count and support-territory details.
Stay competitive if most of these are true
- Alliance can realistically hold meaningful Cities.
- Alliance activity covers declaration windows.
- Leadership has diplomacy and war coordination.
- A useful Influence settlement tier is realistically attainable.
- Members want territory warfare.
- Abandoning Cities would destroy more value than Builder facilities create.
Consider Builder if most of these are true
- Alliance cannot realistically maintain a competitive City position.
- Active hours make repeated City wars difficult.
- Stronger allied alliances can use your Builder support.
- Builder economic/combat facilities create more practical warzone value.
- Alliance Influence ceiling is too low for meaningful non-Builder settlement improvement.
- Members prefer stable contribution/progression over repeated losing territory wars.
Do not convert because of one bad fight
Builder is irreversible.
A lost City is not enough evidence by itself that the alliance should abandon the competitive path.
