At A Glance
- Prioritize buildings that unlock faster progression.
- Focus resources on upgrades with long-term benefits.
- Avoid wasting materials on low-priority structures.
Why Upgrade Priority Matters
As your kingdom grows in Kingdom Fall: Zombie Defense, upgrade costs increase dramatically. Every building requires more resources and longer construction times, making it impossible to upgrade everything at once.
Successful players don’t simply upgrade the first building that’s available—they invest in structures that unlock new content, improve resource generation, and strengthen their kingdom over time.
If you’re constantly waiting for resources or struggling to unlock new features, your upgrade priorities may be holding you back.
1. Headquarters Should Always Be Your Main Goal
Your headquarters is the most important building in the game.
Almost every major feature depends on your headquarters level, including:
- New buildings
- Additional research
- Better troops
- Higher-level heroes
- Stronger defenses
- Event participation
Whenever possible, work toward your next headquarters upgrade.
Even if it requires several prerequisite buildings, keeping your headquarters as your primary objective will speed up overall progression.
2. Upgrade the Academy Early
The Academy provides permanent bonuses through research.
Unlike buildings that only improve one area, research benefits your entire kingdom.
Focus on research that improves:
- Construction speed
- Resource production
- Gathering speed
- Troop strength
- March speed
Always keep research active whenever possible.
3. Keep Resource Buildings Competitive
Many players ignore resource production until they begin running out of materials.
Instead, upgrade:
- Farms
- Lumber mills
- Quarries
- Gold production
at regular intervals.
Higher production means fewer delays later in the game.
4. Prioritize Hero Development Buildings
Your heroes handle much of the combat throughout Kingdom Fall.
Buildings that improve heroes should never fall too far behind.
These upgrades often unlock:
- Higher hero levels
- Better equipment
- Additional abilities
- Faster progression
A stronger hero roster makes both PvE and PvP significantly easier.
5. Military Buildings Come Next
Military buildings become increasingly important as stronger enemies appear.
Upgrade them to unlock:
- Better troops
- Increased troop capacity
- Improved training
- Faster recruitment
Stronger armies also perform much better during alliance events and zombie battles.
6. Upgrade Storage Before You Need It
Storage buildings rarely feel exciting.
However, nothing is more frustrating than producing resources you can’t store.
Improving storage capacity allows you to:
- Save for expensive upgrades
- Reduce wasted production
- Better prepare for large headquarters upgrades
Think of storage as future-proofing your kingdom.
7. Improve Defensive Structures Gradually
Defensive buildings shouldn’t be ignored, but they also shouldn’t receive every available resource.
Instead:
- Upgrade them regularly.
- Focus on your strongest defensive towers.
- Strengthen defenses before major events.
A balanced defense protects your progress without slowing development.
Buildings You Can Delay
Some structures don’t provide immediate progression.
These include decorative buildings and lower-impact support structures.
Upgrade them only when:
- Required for headquarters progression.
- Needed for specific events.
- You’ve completed higher-priority upgrades.
Saving resources here allows faster overall growth.
Plan Your Construction Queue
Every headquarters level requires prerequisite buildings.
Before beginning a major upgrade:
- Check future requirements.
- Upgrade prerequisites early.
- Save enough resources beforehand.
- Keep builders active at all times.
Planning ahead prevents unnecessary waiting.
Use Events to Complete Expensive Upgrades
Construction events often reward building upgrades with valuable items.
Whenever possible:
- Save speedups.
- Delay expensive upgrades until events begin.
- Complete multiple upgrades during reward periods.
This allows you to earn additional resources while progressing normally.
Common Upgrade Mistakes
Avoid these common errors:
- Upgrading every building equally.
- Ignoring research.
- Forgetting resource production.
- Spending speedups on short upgrades.
- Neglecting headquarters progression.
- Leaving builders idle.
Fixing these mistakes alone can dramatically increase your progression speed.
Final Thoughts
The fastest-growing kingdoms in Kingdom Fall: Zombie Defense aren’t built by players with the most resources—they’re built by players who spend their resources wisely. Prioritize your headquarters, keep research active, invest in resource production, and upgrade military and hero buildings strategically. With a clear upgrade plan, you’ll unlock new content faster and avoid the frustrating progression walls that slow many players down.