Stone Wall

Building · Defense
Stone Wall
A plain 2-cell wall of fitted stone blocks. No power, no shield: it just blocks the way. Cheap - wall off a lane early.
| Category | Defense |
| Main crystal | Obsidian (builds walls and pays for upgrades.) |
| Build cost | 15 Obsidian |
| Upgrades give | +HP |
Levels
Section titled “Levels”The cost on level 1 is the build cost; on later levels it is the cost to upgrade to that level. Your Base’s level caps how far every other building can be upgraded.
| Level | HP | Cost |
|---|---|---|
| 1 | 600 | 15 Obsidian |
| 2 | 1200 | 50 Obsidian |
| 3 | 2400 | 100 Obsidian |
| 4 | 4800 | 175 Obsidian |
| 5 | 9600 | 275 Obsidian |
| 6 | 19200 | 400 Obsidian |
| 7 | 38400 | 600 Obsidian |
| 8 | 76800 | 1000 Obsidian |