Building
Arena
Show your strength
Build it once Sanctuary never needs it
What it does
Compete with other Doctors, showcase your prowess, and vie for honorable rewards.
- Opens
- Sanctuary 7 and Squad 1 1
- Levels
- 1
Sanctuary upgrades
No Sanctuary level needs it, not even through another building. Build it for what it gives you.
Research that helps
No research boosts this building itself.
Construction speed and cost research helps every building. See which.
Build cost
Base costs and times, before research, VIP and alliance help.
Grain- 480
Timber- 360
Herbs- 0
- Time
- 2s
- Might
- +100
| Level | Needs | Cost | Time | Might |
|---|---|---|---|---|
| Level 1 | Sanctuary 7, Squad 1 1 |
| 2s | +100 |

