When to Build
Build Nuclear Reactor only after your economy can absorb the cost without delaying core military or expansion plans.
Timing → Endgame
EconomyTier S
Complete Stats, Tier & Strategy Guide
Nuclear Reactor Guide
Converts uranium into stable uranium. Extremely high value output.
Building Stats
- Cost
- 20,000,000 💰
- Tier
- Tier S
- Category
- Economy
- Civilians
- N/A
- Income
- +72/min
- Upkeep
- 0/min
- ROI Score
- 0
- Payback
- 277,777.8 min
Payback Calculator
$
Used only to estimate your post-build income curve. Payback is calculated from building cost and income gain.
- Payback
- 277777 min 47s
- Minute 10 delta
- $-19,999,280
- After build
- $572/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
Economy Opening
Macro-first. Maximum income before any military commitment.
Step 10 · 12:00High 🟠
Note: Late-mid economy milestone.
Late Game Transition
Convert your lead into Nuclear Reactors and Data Centers.
Step 1 · 10:00Critical 🔴
Note: Mid-late economy milestone.
Late Game Transition
Convert your lead into Nuclear Reactors and Data Centers.
Step 3 · 14:00High 🟠
Note: Second Reactor - the econ skeleton.
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 Nuclear Reactor yet. This section will update when verified balance changes are added to the building data.
Frequently Asked Questions
Is Nuclear Reactor worth building in Mini War?
Nuclear Reactor is a Tier S Economy building. Converts uranium into stable uranium. Extremely high value output.
When should I build Nuclear Reactor in Mini War?
Build Nuclear Reactor when its role fits your endgame plan. It has no confirmed prerequisite chain in the current data.
When should I sell Nuclear Reactor in Mini War?
Avoid selling Nuclear Reactor unless you need the space for a stronger tech path. Resale value is not confirmed in the current data.