Spike Wall
Building · Defense
Spike Wall
The Thorn Row: a heavy wall of purple-cored spikes. Whatever hits it gets a little of its own force back.
| Category | Defense |
| Main crystal | Obsidian (builds walls and pays for upgrades.) |
| Build cost | 45 Obsidian |
| Upgrades give | +HP, +Spike Damage |
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 | Reflect | Cost |
|---|---|---|---|
| 1 | 400 | 10 | 45 Obsidian |
| 2 | 800 | 20 | 100 Obsidian |
| 3 | 1600 | 40 | 200 Obsidian |
| 4 | 3200 | 80 | 350 Obsidian |
| 5 | 6400 | 160 | 550 Obsidian |
| 6 | 12800 | 320 | 800 Obsidian |
| 7 | 25600 | 640 | 1200 Obsidian |
| 8 | 51200 | 1280 | 2000 Obsidian |