Chain Bonuses
Each building chain provides a unique passive bonus that scales with the number of buildings you own in that chain.
Industrial Bonus
Each Industrial-chain building reduces your crafting time by 3%. This bonus stacks across all Industrial buildings you own, up to a maximum cap of 40% crafting time reduction. The bonus applies to all crafts regardless of recipe category.
Knowledge Bonus
Each Knowledge-chain building adds +2 YP to your upgrade rolls. When you upgrade any building, the Knowledge bonus is applied on top of the random roll result. The maximum bonus is capped at +20 YP (10 Knowledge buildings).
Military Bonus
Military-chain buildings provide the highest combat score of any chain. While other chains contribute some combat power, Military buildings are the most efficient way to increase both your attack and defense strength. Stack Military buildings if you want to dominate raids.
Residential Bonus
Residential-chain buildings provide balanced, reliable YP with no specialized bonus or penalty. They are ideal for players who want to maximize yield without committing to a specific strategic playstyle. Residential buildings offer the most predictable returns.