When to Build
Build Library during the mid-game transition, after basic income is stable and before committing to expensive late-game structures.
Timing → Mid Game
EconomyTier B
Complete Stats, Tier & Strategy Guide
Library Guide
Produces books. Knowledge is currency.
Building Stats
- Cost
- 9,000 💰
- Tier
- Tier B
- Category
- Economy
- Civilians
- N/A
- Income
- +36/min
- Upkeep
- 0/min
- ROI Score
- 4
- Payback
- 250 min
Payback Calculator
$
Used only to estimate your post-build income curve. Payback is calculated from building cost and income gain.
- Payback
- 250 min 0s
- Minute 10 delta
- $-8,640
- After build
- $536/min
Unlock Chain
✅ No prerequisites. Available from the start.
Build Strategy
When to Sell
Avoid selling unless you need space for a stronger tech path. Selling buildings is usually a last resort because resale value is low.
Sell → Only for stronger slots
Placement Tips
Place it close to Storage Center or other factories to reduce collection friction and keep your economy cluster readable.
Place → Support chain
Appears In
This building does not appear in any current build order.
Current Meta Usage
Other Economy Buildings
EconomyTier B
Economy
Corn Farm
Produces corn. Identical cost to Wheat Farm — diversify early resources.
- Cost
- 150 💰
- Capacity
- 540
- Income
- +36/min
- Build Time
- 8s
ROI Score
240Payback
4.2 minEconomyTier B
Economy
Wheat Farm
A basic farm that produces wheat. Best first building for new players.
- Cost
- 150 💰
- Capacity
- 540
- Income
- +36/min
- Build Time
- 7s
ROI Score
240Payback
4.2 minEconomyTier B
Economy
Coal Cave
Mines coal. A solid step up from farms in mid-early game.
- Cost
- 500 💰
- Capacity
- 540
- Income
- +36/min
- Build Time
- 13s
ROI Score
72Payback
13.9 minEconomyTier B
Economy
Tree Farm
Produces wood. Pairs well with Wood Plant for higher output.
- Cost
- 1,000 💰
- Capacity
- 540
- Income
- +36/min
- Build Time
- 16s
ROI Score
36Payback
27.8 minPatch History
No confirmed patch changes are recorded for Library yet. This section will update when verified balance changes are added to the building data.
Frequently Asked Questions
Is Library worth building in Mini War?
Library is a Tier B Economy building. Produces books. Knowledge is currency.
When should I build Library in Mini War?
Build Library when its role fits your mid game plan. It has no confirmed prerequisite chain in the current data.
When should I sell Library in Mini War?
Avoid selling Library unless you need the space for a stronger tech path. Resale value is not confirmed in the current data.