| Upgrade Level | Cost | Time Required | Items Needed |
|---|---|---|---|
| 1 | 10 | 1 Minute | |
| 2 | 0 | 1 Minute |
Coal x 20
|
| 3 | 0 | 15 Minutes |
Copper x 20
|
| 4 | 0 | 1 Hour |
Circuits x 1
|
| 5 | 0 | 2 Hours |
Circuits x 1
Wire x 200
|
| 6 | 0 | 4 Hours |
Circuits x 15
Insulated Wire x 100
|
| 7 | 0 | 8 Hours |
Gold bar x 1,200
Green Laser x 500
|
| 8 | 0 | 8 Hours |
Sulfuric acid x 20
Accumulator x 15
Insulated Wire x 250
|
| 9 | 0 | 8 Hours |
Gear x 10
Uranium Rod x 1
Steel Plate x 100
|