- Increase the amount of Metal you can store.
- You can store up to 4000 Metal without any Metal Storage. Once your maximum storage is reached, you will not be able to collect any more wood.
- You can have a maximum of 6 Metal Storage Buildings.
Players must first acquire the necessary artifact to unlock a building.
|Artifact||Location||Resources Cost||Time||Additional Increase||Cumlative Increase|
|Rank 1||Floor 9||2500 1000||01:00:00||+2000||2000|
|Rank 2||Floor 13+||12000 8000||04:00:00||+8000||10000|
|Rank 3||Floor 26+||48000 32000||15:00:00||+70000||80000|