Branch and cost
Branch
Column
Red points
Green points
Blue points
Total points
Unlocks
Reputation
In the tree
Research cost
75Red points
10Blue points
Research first
How it becomes available
- Clearing both Old Mine blockages (the Quarry entrance with 1 Dynamite and the passage from the Factory with 4 Building Kit I and 1 Reinforced Beam)Revealed by: Story