Firestone Research Tree 5
Research Tree
* additive effect
Unlock Requirements
The unlock requirements for each column are:
- Column 2 requires 6 levels in the previous research
- Column 3 requires 7 levels in the previous researches
- Column 4 requires 8 levels in the previous researches
- Column 5 requires 5 levels in the previous research
- Column 6 requires 7 levels in the previous researches
- Column 7 requires 10/8 levels in the previous researches
- Column 8 requires 10 levels in the previous researches
Research Duration
The research duration starts at 5 hours for level 1 and increases gradually over the next 10 levels up to 11 hours.
| Level | Duration |
|---|---|
| 1 | 5h |
| 2 | 5h 40m |
| 3 | 6h |
| 4 | 6h 40m |
| 5 | 7h 20m |
| 6 | 8h |
| 7 | 8h 40m |
| 8 | 9h 20m |
| 9 | 10h |
| 10+ | 11h |
The total time required to finish all researches with 2 research slots is 187 days 11 hours.